Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Shadow's defeat as Astra becomes the Key
S16E26
·
The Armageddon Factor Part 6
To
Merak chooses love over survival
S16E26
·
The Armageddon Factor Part 6
Why These Connect
The narrative assertion
"The Doctor's hasty escape with Drax prompts Merak's refusal to enter the TARDIS, driven by his desire to save Astra, forcing a dramatic parting."
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.