Choose your own architecture: Interactive pattern storytelling

You peer into the gloom to see dark, slimy walls with pools of water on the stone floor in front of you. The air is cold and dank. You light your lantern and step warily into the blackness. Cobwebs brush your face and you hear the scurrying of tiny feet: rats most likely. You set off into the cave. After a few yards you arrive at a junction. Will you turn west (turn to 71) or east (turn to 278)?