Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Damon reveals fish-people transformation
S4E19
·
The Underwater Menace Part 1
To
Doctor learns Atlantis rises and Polly faces transformation
S4E19
·
The Underwater Menace Part 1
Why These Connect
The narrative assertion
"Polly realizes she is to be turned into a fish person (beat_267029b02348a9b2), causing Ara to interrupt the Doctor and Zaroff to report Polly's imminent operation, initiating the rescue plan (beat_0d8f452857a06f62)."
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.