Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Machine fails at the final hour
S16E11
·
The Stones of Blood Part 3
To
Vivien destroys the hyperspace device
S16E11
·
The Stones of Blood Part 3
Why These Connect
The narrative assertion
"K9's report of power depletion at the stone circle directly causes the collapse of the hyperspace window, trapping the Doctor in the ancient vessel and leaving Emilia vulnerable to Vivien's attack."
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.