Summary

Gregor and Luxa (and other people who got caught up in the problem) goes to investigate the disappearance of the nibbles from their colonies. For once, there is no prophecy driving them on (or so they think). When they find marks of secret, bodies of nibblers, and an almost-dead nibbler, they grow more and more determined to solve the mystery (in Luxa's case, at leasat). And when they realize what happened (and is happening), drastic measures had to be made.