Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor seeks ancient vampiric lore
S18E15
·
State of Decay Part 3
To
Doctor uncovers vampire's fatal weakness
S18E15
·
State of Decay Part 3
Why These Connect
The narrative assertion
"The Doctor's return to the TARDIS and discussion with K9 (beat_29c27e54fbc7da42) directly leads to the successful retrieval of the Record of Rassilon (beat_97a1b28c97a491ce), providing the key information needed to defeat the Great One."
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.