Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
TARDIS trembles as temporal disturbance detected
S19E23
·
Time Flight Part 1
To
TARDIS materializes stirs airport crisis
S19E23
·
Time Flight Part 1
Why These Connect
The narrative assertion
"Nyssa's detection of 'another ship' drawing them into spatial convergence directly causes the emergency TARDIS materialization at Heathrow Airport."
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.