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You glance over your shoulder to see a horde of warriors silhouetted in the light of the tunnel entrance. Their blood-curdling war-cries echo along the damp and gloomy shaft.
You soon reach a section where the tunnel has collapsed and a large mound of earth rises almost to the ceiling. Desperately, you climb the mound, claw your way through the narrow gap, and then drop to the passageway beyond. Here you discover a loose timber prop. When everyone is clear, you barge it with your shoulder; the prop splinters and tons of earth and stone come crashing down to seal the tunnel. As the dust settles, you stare into the darkness ahead. On the walls you can just make out a line of torches. Your men gather these and light them before you continue on your way.