Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Turlough hides and studies the crystal
S20E9
·
Mawdryn Undead Part 1
To
Turlough challenges the Black Guardian again
S20E9
·
Mawdryn Undead Part 1
Why These Connect
The narrative assertion
"The Black Guardian's real presence (confirmed by the crystal's glow) directly causes Turlough's next distressed plea (expressed in horror to Ibbotson) and leads to the Guardian's forceful response to Turlough's frustration about being stuck on Earth."
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.