Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Ping-Cho's betrayal of Marco Polo by handing Susan the TARDIS key in Episode 18 directly leads to the Doctor's group later stealing the key to protect her. This sets off a chain reaction culminating in Ian's confession and Marco's refusal to return it."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
This connection is foundational to the plot's momentum. It shows how personal loyalty (Ping-Cho's to Susan) drives larger conflicts (the theft and its repercussions), tying the episodes together through ethical dilemmas.
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.