Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor deciphers the dead man’s clue
S4E3
·
The Smugglers Part 3
To
Polly discovers Lucinda Maltree’s tombstone
S4E3
·
The Smugglers Part 3
Why These Connect
The narrative assertion
"After examining tombstones, Polly recites Lucinda Maltree. Reflecting on this name, the Doctor now realizes that these names old the key to the dead man's secret."
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.