Causal
medium strength
Narrative Connection
How these two moments in the story relate
From
Kublai Khan’s Urgent Summons Disrupts Plans
S1E18
·
Rider From Shang-Tu
To
Courier reveals Shang-Tu’s deadly transit methods
S1E18
·
Rider From Shang-Tu
Why These Connect
The narrative assertion
"Marco Polo receives a message from Kublai Khan and this causes Ian, Barbara and the Doctor to interrogate Ling-Tau, courier from Shang-Tu, about the logistics of his journey."
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.