Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"The Doctor's realization that Thera's seismic activity is tied to Atlantis and the Master's TOM-TIT device (Episode 21) directly leads to the Master's use of the crystal module to travel to Atlantis and resurrect Kronos (Episode 24). The Doctor's early recognition of the temporal threat enables the Master's later escalation."
inferred by llm_cross_episode_arc
Why This Matters Across Episodes
The longer arc this connection carries
This connection establishes the temporal threat arc's continuity. The Doctor's initial insight about the TOM-TIT device's true nature (a temporal cataclysm) foreshadows the Master's later use of the same device's components (the crystal module) to summon Kronos. It ties the Doctor's early investigation to the Master's eventual cosmic gambit.
About Causal Connections
A directly causes B. The first event sets forces in motion that produce the second. These are the load-bearing connections of plot--remove one and the story structure collapses.