Summary

Little Face tries to follow them but Ryter sends him away; it will be too dangerous for him to follow them. They decide to travel along the underground Pipe that travels between the latches. It used to be connected to a water system but it dried up during the Big Shake that destroyed society. Spaz worries that Ryter won't be able to make it but he insists he has to finish his book. Ryter notes that Billy must have taken a particular interest in Spaz to forbid him to leave. Ryter learns about the proov girl who gave Spaz food and is warned that interaction with proovs is dangerous.

Ryter and Spaz hear someone following them. It's Little Face. Spaz thinks he'll slow them down, but Ryter points out that he's looked after himself all this time. There's a break...