Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor abandons companions for Rome
S2E12
·
The Slave Traders
To
Villa invasion and Barbara’s abduction
S2E12
·
The Slave Traders
Why These Connect
The narrative assertion
"The Doctor leaves for Rome with Vicki, leaving Ian and Barbara vulnerable at the villa, which Didius and Sevcheria then raid."
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.