Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor reveals hidden tunnel to Ian
S1E29
·
The Bride of Sacrifice
To
Ixta follows Ian into the tunnel
S1E29
·
The Bride of Sacrifice
Why These Connect
The narrative assertion
"The Doctor arranging to meet Ian in the garden to find the tunnel (beat_4b32d7e7b136081e) directly precedes Ian setting off to investigate the tunnel (beat_ec2fbe7c9db0294d), but Ixta follows him."
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.