Causal
medium strength
Narrative Connection
How these two moments in the story relate
From
Ian Discovers Hidden Passage
S1E11
·
The Rescue
To
Rockfall traps group in tunnel
S1E11
·
The Rescue
Why These Connect
The narrative assertion
"Barbara urging the group not to give up leads directly to Ian discovering a light source and a passage, changing their fortunes."
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.