Narrative Connection
How these two moments in the story relate
Why These Connect
The narrative assertion
"Borusa handing over the Great Key to the Doctor under duress in Episode 25 enables the Doctor's use of it as the power source for the Demat gun in Episode 26's workshop scene."
inferred by llm_cross_episode_character
Why This Matters Across Episodes
The longer arc this connection carries
The Great Key is a narrative MacGuffin whose handover in Episode 25 is directly responsible for the Demat gun's activation in Episode 26. This shows how Borusa's compliance (forced or otherwise) enables the Doctor's desperate 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.