A mysterious murder in the ranks has ripped ThunderClan apart. But more secrets still remain to be discovered.

Jayfeather is determined to find out who his real parents are. But he'll have to trample through a forest of lies in order to uncover the truth. Hollyleaf is shocked by her Clan's disobedience of the warrior code, and distraught enough to strike out at someone she's always admired. And Lionblaze must bear horrified witness to events that will change everything he believes.

In the harshest days of leaf-bare Clanmate turns upon Clanmate, danger lurks behind familiar faces, and one more warrior may be lost forever. . . .