S1E16 · Five Hundred Eyes graph

Tegana’s Inconsistent Alibi and Polo’s Blind Trust

Tegana returns to the caravan with a flimsy explanation for his absence—claiming bandits forced him to hide overnight—but his story unravels under Barbara’s scrutiny. While Polo dismisses her concerns, Barbara and Ian privately dissect the inconsistencies: no campfire remains, no evidence of bandits, and Tegana’s vague timeline. The Doctor, meanwhile, is sidelined as Polo confiscates the TARDIS key, a power move that underscores Polo’s growing paranoia and the group’s fracturing trust. Tegana’s smirking skepticism about the Doctor’s water discovery further exposes his disdain for Polo’s leadership, while Barbara’s quiet investigation sets the stage for her eventual confrontation with the truth. The scene escalates from passive distrust to active suspicion, with Polo’s blind faith in Tegana and the Doctor’s defiance creating a volatile dynamic that will soon explode into open conflict.

Plot Beats

The narrative micro-steps within this event

2

Tegana rejoins the caravan, falsely claiming bandits delayed him, giving a flimsy excuse for failing to deliver water earlier. Polo credits the Doctor's ability to find water as their savior, highlighting the group's reliance on the Doctor and the tension between Polo and Tegana.

relief to suspicion

Barbara expresses concern about discrepancies in Tegana's story--the lack of a campfire--fueling her suspicion that he's lying, but Polo dismisses her concerns, prioritizing their departure and limiting their stay to one night.

suspicion to dismissal

Who Was There

Characters present in this moment

5

Determined and increasingly concerned, with a quiet intensity as she pieces together the inconsistencies in Tegana’s story.

Barbara challenges Tegana’s alibi by pointing out the absence of campfire remains—a critical clue that undermines his claim of bandits camping overnight. She privately discusses her suspicions with Ian, setting the stage for further investigation. Barbara’s historical knowledge (e.g., noting Karakorum’s location) adds weight to her skepticism, and her dialogue reveals a determined, methodical approach to uncovering the truth. Her actions highlight the fracturing trust within the group and her role as a mediator between Polo’s authority and the Doctor’s defiance.

Goals in this moment
  • Uncover the truth behind Tegana’s absence and the lack of evidence supporting his bandit alibi.
  • Protect the group from potential betrayal by Tegana or Polo’s poor judgment.
Active beliefs
  • Tegana is lying about the bandits and has ulterior motives for his absence.
  • Polo’s blind trust in Tegana is putting the caravan at risk.
Character traits
Suspicious Methodical investigator Protective of the group Historically informed Quietly defiant of Polo’s authority
Follow Barbara Wright's journey

Cautiously analytical, with a growing sense of unease about Tegana’s credibility and Polo’s blind trust in him.

Ian actively investigates Tegana’s alibi by directly questioning the number of bandits and the absence of a campfire, aligning with Barbara’s skepticism. His pragmatic, analytical approach contrasts with Polo’s dismissive attitude, as he presses for logical inconsistencies in Tegana’s story. Ian’s participation reinforces the growing distrust within the group and sets the stage for future confrontations with Tegana.

Goals in this moment
  • Expose the inconsistencies in Tegana’s alibi to uncover the truth about his absence.
  • Support Barbara in her quiet investigation and challenge Polo’s rushed decisions.
Active beliefs
  • Tegana’s story about the bandits is fabricated or incomplete.
  • Polo’s paranoia about bandits is clouding his judgment and endangering the group.
Character traits
Analytical Pragmatic Skeptical of Tegana’s claims Supportive of Barbara’s investigation Direct in confrontation
Follow Ian Chesterton's journey
Marco Polo
primary

A tense blend of authoritative resolve masking deep paranoia and frustration, with flashes of defensiveness when challenged by Barbara or the Doctor.

Polo stands firm in his authority, dismissing Barbara’s concerns about the bandits and insisting on an immediate departure from the oasis the next morning. He confiscates the Doctor’s TARDIS key, asserting control over the group’s resources and movements. His dialogue reveals a mix of paranoia—fearing bandit threats—and blind trust in Tegana, despite growing evidence of the warlord’s deceit. Polo’s actions underscore his desperation to reach Tun-Huang and his struggle to maintain leadership amid crumbling loyalty.

Goals in this moment
  • Maintain control over the caravan’s departure and resources (e.g., confiscating the TARDIS key).
  • Reach Tun-Huang as quickly as possible, despite the group’s exhaustion and the Doctor’s protests.
Active beliefs
  • Tegana is loyal and his alibi about the bandits is credible.
  • The Doctor’s water discovery is a distraction from the immediate threat of bandits and the need to move forward.
Character traits
Authoritative Paranoid Blindly trusting of Tegana Defensive Desperate to maintain control
Follow Marco Polo's journey

Smugly confident, with a veneer of amusement masking his disdain for Polo and the Doctor. His internal state is one of calculated deception, enjoying the chaos his lies are sowing.

Tegana returns to the caravan with a smug, dismissive demeanor, providing a flimsy alibi about bandits forcing him to hide overnight. He smirks at Polo’s blind trust in his story and mocks the Doctor’s water discovery, revealing his disdain for Polo’s leadership. Tegana’s dialogue is laced with subtle contempt, and his vague timeline (e.g., claiming the bandits rode for Karakorum) further exposes the weaknesses in his alibi. His participation escalates the group’s distrust and sets the stage for future confrontations.

Goals in this moment
  • Maintain his cover as a loyal member of the caravan while secretly advancing Noghai’s agenda.
  • Undermine Polo’s authority and the Doctor’s credibility to create division within the group.
Active beliefs
  • Polo is easily manipulated and will accept his alibi without question.
  • The Doctor and his companions are outsiders who pose no real threat to his plans.
Character traits
Smug Dismissive of others Deceptive Contemptuous of Polo’s leadership Calculated in his lies
Follow Tegana's journey

Exasperated and defiant, with a simmering frustration at being sidelined and mocked. His internal state is one of quiet determination to regain control over the TARDIS and assert his authority.

The Doctor is sidelined and defiant, mocked by Tegana for his water discovery and resisted by Polo, who confiscates his TARDIS key. Despite his exhaustion, the Doctor asserts his intellectual superiority, hinting at his plans to repair the TARDIS. His dialogue reveals frustration with the group’s rushed decisions and Polo’s lack of understanding. The Doctor’s participation underscores the power struggle between him, Polo, and Tegana, with his defiance foreshadowing future conflicts.

Goals in this moment
  • Regain access to the TARDIS by repairing it and potentially forging a duplicate key.
  • Challenge Polo’s authority and Tegana’s deceit to protect his companions and the TARDIS.
Active beliefs
  • Polo is making reckless decisions that endanger the group.
  • Tegana is a threat to the TARDIS and the caravan’s safety.
Character traits
Defiant Intellectually superior (self-assured) Frustrated with Polo’s decisions Protective of the TARDIS Hints at hidden capabilities (repairing the TARDIS)
Follow The First …'s journey

Objects Involved

Significant items in this scene

5
TARDIS (Time and Relative Dimension in Space)

The TARDIS is central to the power struggle in this event, as Polo confiscates its key from the Doctor to assert control over the group’s resources. The Doctor’s defiance and hint at repairing the TARDIS foreshadow his future efforts to regain autonomy. The TARDIS symbolizes both a technological marvel and a source of conflict, with its condensation water earlier in the scene having provided temporary relief. Its status as a 'caravan that flies' (a term used by Noghai’s forces) elevates its significance beyond a mere object, making it a coveted prize in the larger narrative.

Before: The TARDIS is towed by the caravan, with …
After: The TARDIS key is confiscated by Polo, leaving …
Before: The TARDIS is towed by the caravan, with the Doctor and Susan inside. Condensation from its walls has been collected as water, and the Doctor possesses the key, which he uses to access it.
After: The TARDIS key is confiscated by Polo, leaving the Doctor without direct access. The Doctor implies he will repair the TARDIS, hinting at a future plan to regain control.
Doctor's TARDIS Key (Original and Forged Duplicate)

The Doctor’s TARDIS key is a pivotal object in this event, as Polo confiscates it from the Doctor to assert his authority and control over the caravan’s resources. The key symbolizes leverage, autonomy, and the power struggle between Polo and the Doctor. Its confiscation underscores Polo’s paranoia and his growing distrust of the Doctor, while also setting the stage for the Doctor’s defiance and future efforts to regain access. The key’s status as a physical representation of control makes it a focal point of the scene’s tension.

Before: The Doctor possesses the TARDIS key, using it …
After: The key is confiscated by Polo, leaving the …
Before: The Doctor possesses the TARDIS key, using it to access the ship and collect condensation water.
After: The key is confiscated by Polo, leaving the Doctor without direct access to the TARDIS. The Doctor hints at forging a duplicate, foreshadowing his future actions.
Missing Oasis Campfire Evidence

The missing oasis campfire remains serve as a critical clue in Barbara and Ian’s investigation of Tegana’s alibi. Their absence undermines Tegana’s claim that twelve bandits camped at the oasis overnight, as a fire would have left visible ashes or charred wood—especially in the cold desert night. This object (or lack thereof) becomes a silent witness to Tegana’s deceit, driving the group’s growing suspicion of him. The campfire remains’ role is purely evidentiary, but their significance is immense, as they expose the fragility of Tegana’s story and the depth of his betrayal.

Before: The campfire remains are absent from the oasis, …
After: The absence of campfire remains is noted by …
Before: The campfire remains are absent from the oasis, despite Tegana’s claim that bandits camped there overnight.
After: The absence of campfire remains is noted by Barbara and Ian, solidifying their skepticism of Tegana’s alibi. The lack of evidence becomes a focal point in their private discussion and Ian’s direct confrontation with Tegana.
Susan's Condensation Water Container (TARDIS)

The TARDIS wall condensation, though not directly referenced in this event, looms as a symbol of the Doctor’s resourcefulness and the group’s reliance on his ingenuity. Earlier in the scene, the Doctor collected this water to quench the caravan’s thirst, but here, it serves as a subtextual reminder of his value to the group—value that Polo and Tegana seem determined to undermine. The absence of further mention of the condensation highlights the shift from survival to power struggles, as the focus turns to Tegana’s lies and Polo’s confiscation of the TARDIS key.

Before: The condensation has already been collected by the …
After: The condensation is no longer a focal point, …
Before: The condensation has already been collected by the Doctor earlier in the scene, providing temporary relief from thirst.
After: The condensation is no longer a focal point, as the event shifts to political maneuvering and distrust. Its role as a lifeline is overshadowed by the conflict over the TARDIS key.
Doctor's TARDIS

The TARDIS is central to the power struggle in this event, as Polo confiscates its key from the Doctor to assert control over the group’s resources. The Doctor’s defiance and hint at repairing the TARDIS foreshadow his future efforts to regain autonomy. The TARDIS symbolizes both a technological marvel and a source of conflict, with its condensation water earlier in the scene having provided temporary relief. Its status as a 'caravan that flies' (a term used by Noghai’s forces) elevates its significance beyond a mere object, making it a coveted prize in the larger narrative.

Before: The TARDIS is towed by the caravan, with …
After: The TARDIS key is confiscated by Polo, leaving …
Before: The TARDIS is towed by the caravan, with the Doctor and Susan inside. Condensation from its walls has been collected as water, and the Doctor possesses the key, which he uses to access it.
After: The TARDIS key is confiscated by Polo, leaving the Doctor without direct access. The Doctor implies he will repair the TARDIS, hinting at a future plan to regain control.

Location Details

Places and their significance in this event

1
Oasis (One Week's Journey North)

The oasis serves as a temporary respite for the caravan, but its role in this event is far more complex. It becomes a pressure cooker of deception, power struggles, and unspoken betrayals, as Tegana’s lies unravel under Barbara and Ian’s scrutiny. The oasis’s physical features—such as the absence of campfire remains—become critical clues in the group’s investigation. Its atmosphere is tense, with whispered conversations and growing distrust, while its practical role shifts from a place of rest to a battleground of conflicting agendas. Symbolically, the oasis represents both the group’s fragile hope for survival and the cracks forming in their unity.

Atmosphere Tension-filled with whispered conversations, growing distrust, and the looming threat of betrayal. The oasis, meant …
Function A battleground for deception and power struggles, where the group’s fragile trust is tested and …
Symbolism Represents the group’s fragile hope for survival and the unraveling of their unity. The oasis, …
Access Open to all members of the caravan, but tensions and distrust limit free movement and …
The absence of campfire remains, despite Tegana’s claim of bandits camping overnight. The paltry shade of palm trees, offering little protection from the desert sun. The pool of water, a temporary lifeline that does little to ease the group’s deeper anxieties.

Organizations Involved

Institutional presence and influence

2
Mongol Empire (Kublai Khan's Court and Imperial Authority)

Kublai Khan’s Court is indirectly represented in this event through Polo’s desperate ambition to reach Tun-Huang and deliver the TARDIS as a gift to the Khan. Polo’s paranoia and rushed decisions stem from his desire to fulfill his duty to the court and secure his freedom from exile. The court’s influence is felt in Polo’s authority over the caravan and his insistence on leaving the oasis despite the group’s exhaustion. However, his blind trust in Tegana and his confiscation of the TARDIS key reveal his growing instability, which could jeopardize his mission for the court.

Representation Through Polo’s authority as an envoy of Kublai Khan’s Court and his desperate ambition to …
Power Dynamics Kublai Khan’s Court exerts influence over Polo through his role as an envoy, but Polo’s …
Impact The court’s influence is both a motivating force for Polo and a source of tension, …
Internal Dynamics Polo’s internal conflict between loyalty to the court and the growing distrust within the caravan …
Ensure the safe delivery of the TARDIS to Kublai Khan’s Court as a gift to secure Polo’s freedom from exile. Maintain the caravan’s loyalty and cohesion to avoid delays or betrayals that could threaten the mission. Polo’s authority as an envoy, which grants him control over the caravan’s resources and decisions. The promise of freedom and reward for successfully delivering the TARDIS to the court.
Noghai's Warlord Faction (Noghai's Invasion Force)

Noghai’s Army is indirectly but critically involved in this event through Tegana’s actions. Tegana, as a warlord for Noghai, uses his absence and fabricated alibi to advance Noghai’s agenda—specifically, the seizure of the TARDIS for military use. His lies and manipulation of Polo’s trust serve as a proxy for Noghai’s broader strategy to undermine Kublai Khan’s caravan and capture the 'caravan that flies.' The organization’s influence is exerted through Tegana’s deceit, which sows division and weakens Polo’s leadership, making the caravan more vulnerable to future attacks.

Representation Through Tegana’s calculated lies and manipulation of Polo’s trust, Noghai’s Army exerts influence without direct …
Power Dynamics Noghai’s Army operates as a shadowy antagonist, using Tegana as a pawn to destabilize the …
Impact The organization’s actions deepen the caravan’s internal conflicts, making it more susceptible to external threats …
Internal Dynamics Tegana operates independently but aligns with Noghai’s military goals. His actions reflect Noghai’s broader strategy …
Undermine Polo’s authority and the caravan’s unity to facilitate the seizure of the TARDIS. Create division within the group to make them easier targets for Noghai’s forces. Psychological manipulation (Tegana’s lies and smug demeanor). Exploitation of Polo’s paranoia and blind trust in Tegana.

Narrative Connections

How this event relates to others in the story

Within this episode

What led here 2

"Barbara proving the water is safe directly enables the caravan to survive until Tegana arrives later."

Polo Demands Proof of Water’s Safety
S1E16 · Five Hundred Eyes

"Polo's despair and reliance on Tegana (beat_5d4b4107b5c723a2) are directly addressed when Tegana reappears at the oasis (beat_ea8a1a60ce3ccfb4), offering a reason (albeit false) for his delay. The situation directly leads to this beat."

Polo’s Desperate Gamble on Tegana
S1E16 · Five Hundred Eyes
What this causes 3

"Barbara expressing concern about Tegana's story connects with the Doctor, Barbara, and Ian further discussing the possibilities of Tegana's lie amongst themselves"

Tegana’s Lies and Polo’s Blind Authority
S1E16 · Five Hundred Eyes

"Barbara's suspicion of Tegana escalates from a private concern to a direct confrontation as Ian starts to question Tegana directly. Polo responds to the Doctor by confiscating his key."

Polo Confiscates the TARDIS Key
S1E16 · Five Hundred Eyes

"Barbara's growing distrust of Tegana at the oasis foreshadows her eventual discovery of his true allegiance and treacherous plans in the Cave of Five Hundred Eyes."

Tegana reveals Noghai’s plot to Malik
S1E16 · Five Hundred Eyes

Across episodes

Threads arriving here 10
Callback medium

"Tegana’s chess metaphor about 'shah mat' (king is dead) in Episode 15 foreshadows his later treatment of the group, particularly the Doctor, as expendable tools."

Tegana’s chess metaphor fractures the group
S1E15 · The Singing Sands

"The panic over Susan and Ping-Cho's disappearance in Episode 15 leads to Barbara's heightened vigilance and distrust of Tegana in Episode 16, driving her to investigate his alibi."

Barbara’s panic over missing travelers
S1E15 · The Singing Sands

"Tegana’s volunteering for the oasis mission (Episode 15) directly leads to his delayed return and flimsy alibi (Episode 16), which is immediately challenged by Barbara and Ian."

Tegana volunteers for the oasis mission
S1E15 · The Singing Sands
Causal medium

"The Doctor’s collapse and splitting of the group due to water deprivation in Episode 15 causes the group’s desperation at the oasis in Episode 16, where Tegana returns with a flawed alibi and Barbara’s skepticism over water safety begins."

The Doctor’s collapse forces a TARDIS intervention
S1E15 · The Singing Sands

"Susan’s anxiety about the Doctor’s withdrawal and her sense of displacement in Episode 15 deepens her emotional investment in finding him in Episode 16, motivating her to take action."

Susan’s Fear of the Doctor’s Withdrawal
S1E15 · The Singing Sands

"Susan's longing for permanence and stability ('Another time, another galaxy') ECHOES in Barbara's suspicion and defiance toward Tegana's deceit in Episode 16, both reflecting a shared theme of resistance to instability and manipulation."

Susan’s longing for permanence
S1E15 · The Singing Sands

"Tegana's initial ominous chess metaphor ('shah mat' foreshadowing death) evolves into his outright sabotage of the water supply, which then enables his later deception about bandits in Episode 16."

Tegana’s chess metaphor exposes the group’s fragility
S1E15 · The Singing Sands

"The Doctor’s collapse due to dehydration (Episode 15) leads directly to his confinement in the TARDIS and his discovery of water condensation (Episode 16), which becomes a turning point in the survival arc."

The Doctor’s collapse forces a TARDIS intervention
S1E15 · The Singing Sands

"The Daleks' surveillance and manipulation of Susan (Episode 7) reflect Marco Polo's growing distrust and surveillance of the Doctor and his companions (Episode 16), both illustrating oppressive control over individuals' actions."

Daleks expose human emotional bonds
S1E7 · The Escape

"Susan’s existential longing for 'another time, another galaxy' (Episode 15) parallels the Doctor’s refusal to accept Polo’s authority, creating a thematic continuity of defiance against forces seeking to control or subdue them."

Susan’s longing for permanence
S1E15 · The Singing Sands
Threads leading onward 12
Callback medium

"Police Commissioner Chenchu’s line in Episode 17 — 'When will your companions realise I know what I'm talking about when I say it's dangerous to wander about at night? First Barbara, and now the Doctor...' — explicitly references Barbara’s forbidden nighttime pursuit of Tegana in Episode 16."

Polo confirms the cave’s location
S1E17 · The Wall of Lies
Callback medium

"Barbara’s scrutiny of Tegana’s alibi (no campfire) in Episode 16 is echoed when Ian validates Susan’s claim that the quartz eyes moved in the cave in Episode 17."

Ian discovers the hidden door in the cave
S1E17 · The Wall of Lies

"Tegana’s return with a flimsy alibi in Episode 16 (cand_evt_scene_013e2b68a6794277_01) directly leads to Barbara’s capture in Episode 17 when she pursues him to the cave."

Ian discovers the hidden door in the cave
S1E17 · The Wall of Lies

"Barbara and Ian's immediate suspicion of Tegana's alibi at the oasis directly drives their investigation into the Cave of Five Hundred Eyes, where they encounter evidence of his duplicity."

Doctor confronts Tegana with Barbara’s handkerchief
S1E17 · The Wall of Lies

"Polo's blind trust in Tegana, established in Episode 16, continues into Episode 17, culminating in Polo seizing the TARDIS under Tegana's false assertions."

Polo seizes the TARDIS under Tegana’s influence
S1E17 · The Wall of Lies

"Barbara's skepticism of Tegana's bandit alibi, rooted in her observation of absent campfire remnants, directly precedes her pursuit of Tegana to the cave in Episode 17, where she uncovers Tegana's treachery."

Doctor confronts Tegana with Barbara’s handkerchief
S1E17 · The Wall of Lies

"Barbara's role in challenging Tegana’s alibi in Episode 16 (pointing out lack of campfire remains) establishes her character as the keen observer of inconsistencies, which continues into Episode 17 where she is captured while eavesdropping on Tegana and Acomat’s conspiracy."

Polo confirms the cave’s location
S1E17 · The Wall of Lies

"Tegana's flimsy alibi and Polo's blind trust in Episode 16 escalate into Polo's full manipulation by Tegana's lies in Episode 17."

Polo confirms the cave’s location
S1E17 · The Wall of Lies

"Tegana's initial inconsistency (lack of campfire evidence) escalates into full-scale betrayal and manipulation in Episode 17, where he orchestrates the seizure of the TARDIS, exploiting Polo's authority to imprison the travelers."

Tegana seizes the TARDIS through manipulation
S1E17 · The Wall of Lies

"Barbara and Ian's suspicion of Tegana's alibi in Episode 16 (lack of campfire evidence) escalates in Episode 17 when they discover concrete proof of his deception (Barbara's handkerchief in the cave)."

Doctor confronts Tegana with Barbara’s handkerchief
S1E17 · The Wall of Lies

"Barbara's skepticism about Tegana's bandit alibi (Episode 16) directly leads to Ping-Cho's more sophisticated attempt to expose Tegana's lies using the handkerchief detail (Episode 17)."

Polo dismisses Ping-Cho’s evidence against Tegana
S1E17 · The Wall of Lies

"Barbara and Ian's investigation of Tegana's lies in E16 (bandit story) parallels the group's investigation of the Cave of Five Hundred Eyes in E17 (hidden door and moving quartz eyes)."

Ian discovers the hidden door in the cave
S1E17 · The Wall of Lies

Themes This Exemplifies

Thematic resonance and meaning

Part of Larger Arcs

Key Dialogue

"TEGANA: There were bandits here last night when I arrived, so I had to wait in hiding until this morning when they left. And then when I prepared to leave for you, I saw your caravan coming across the desert towards me."
"BARBARA: Marco, we're all in need of rest, and the Doctor is still very weak."
"POLO: This oasis is dangerous, Barbara. We must leave here as soon as possible."
"BARBARA: Look, last night was very cold, but there's no sign of a fire having been lit."
"IAN: It was a cold night. Didn't they light a fire?"
"TEGANA: Twelve."
"IAN: It was a cold night. Didn't they light a fire?"
"POLO: If they had, Ian, the remains would still be visible."
"DOCTOR: Young man, you have no concept of what is happening, have you? And you still don't seem to realise that you're speaking to a man of superior intellect."
"POLO: My conscience pricks me. I was adamant despite the Doctor's protests, that the key and his caravan should be handed over to me."