Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"The TARDIS’s arrival on Earth in Part 1 triggers the on-ground search at the stone circle, setting the stage for Romana’s subsequent disappearance and the frantic search in Part 2."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
The mission to find the Key of Time fragment on Earth drives the Doctor and Romana to the stone circle. Once there, the Doctor’s departure to confront De Vries and Romana being left at the circle leads directly to her near-fatal fall in Part 2.
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.