Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Ayden’s staged death exposes the Doctor’s deception
S1E25
·
Sentence of Death
To
Barbara faces a deadly ultimatum
S1E25
·
Sentence of Death
Why These Connect
The narrative assertion
"The revelation that Ayden was killed to protect the fourth key leads directly to Barbara receiving a threat about another death if the key's location is revealed, directly escalating stakes."
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.