Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Marco Polo’s return of the TARDIS to the Doctor in Episode 20 enables the companions to materialize on Marinus in Episode 21. This action prevents them from being stranded in Episode 20 and sets the stage for their forced compliance with Arbitan's blackmail in Episode 21."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
The TARDIS’s return is a direct cause of the crew’s subsequent adventures on Marinus. Without Marco Polo’s action, the crew would not have been able to land on Marinus, leading to their blackmail by Arbitan.
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.