The Clans have finally arrived in their new home, and now they must struggle to establish territories and learn the hidden dangers of this unfamiliar world. Most importantly, they must find a replacement for the Moonstone--a place to communicate with StarClan. But more than one cat is harboring sinister plans that could lead to violence and darkness, and as the warriors wait for a sign, some of them begin to realize that the threats they face in the forest may not be as perilous as the threats they face from within. . . .