Slowly you unsheath your knife and then run for the entrance. The wolf is after you like a shot. It leaps and tears your bearskin coat. While the wolf is regaining its balance, you run into the cave and toward the left tunnel. The wolf runs after you. You look over your shoulder and lose your footing. Instead of falling on the ground, you feel yourself sliding down a long, steep chute. 

Far above, the wolf howls with frustration. You land in a heap at the bottom of a pit, shaken but unarmed. There is a dark passageway to the left. You toss in a stone and, after what seems like a long time, you hear a splash far below. Fortunately, there is another passageway to the right, which is dimly lit by phosphorescent light.