348
Less than fifty yards along the tunnel wall you notice a lever. Your Kai instincts make you naturally suspicious of this unusual feature, and you scour the floor looking for evidence of a trap. You find nothing, but a glance at the roof reveals the underside of a wide portcullis hidden between two beams.
You pull the lever and the portcullis falls, sealing off the tunnel behind you. To make sure you will not be followed, you smash the lever with a wedge of stone before continuing along the tunnel.