Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Captain seals catacombs with cannon blast
S16E4
·
The Ribos Operation Part 4
To
Graff orders executions of rebels
S16E4
·
The Ribos Operation Part 4
Why These Connect
The narrative assertion
"The Captain igniting the cannon's fuse to close the catacombs (Act 2) causes the unstable cave roof to collapse, trapping Graff's forces and the protagonists, creating the chaos that allows the Doctor to summon a shrivenzale and save Garron and Unstoffe."
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.