Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Romana’s methodical use of the TARDIS tracer on earthworks in Part 1 enables her to detect the Cailleach’s signature using the same device in Part 2."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
The analytic process Romana uses to locate Key of Time segments with the tracer in Part 1 becomes the same process she uses to detect an arcane disturbance 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.