Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor blackmails Erato into a dangerous bargain
S17E12
·
The Creature from the Pit Part 4
To
Doctor and Romana deploy gravity tractor beam
S17E12
·
The Creature from the Pit Part 4
Why These Connect
The narrative assertion
"The Doctor's preemptive removal of Erato's photon drive ensures Erato's cooperation during the rescue mission, allowing them to successfully launch the TARDIS and begin slowing the neutron star."
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.