Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor uncovers Masters staged death plan
S14E12
·
The Deadly Assassin Part 4
To
Doctor learns Eye of Harmony secrets
S14E12
·
The Deadly Assassin Part 4
Why These Connect
The narrative assertion
"The Doctor’s inquiry about the President’s symbols (Sash and Great Key) leads directly to Engin playing the historical transgram about Rassilon and the Eye of Harmony. This information is critical—it provides the Doctor with the knowledge needed to understand and later thwart the Master’s plan."
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.