Foyle snatched up a sledge hammer, leaped on them like a caveman, and felled them. Behind him he heard Dagenham shouting in the distance. He looked around wildly, dreading the discovery that he was trapped in a cul-de sac. The workshop was L-shaped. Foyle tore around the corner, burst through the entrance of another jaunte-proof maze and was lost again. The Gouffre Martel alarm system began clattering. Foyle battered at the walls of the labyrinth with the sledge, shattered the thin plastic masking, and found himself in the infrared-lit south corridor of the women's quadrant.