The warrior cat Fireheart's determination to uncover the truth about another warrior's death leads him deep into danger, and reveals secrets that test the strength of clan loyalties.

For generations, four clans of wild cats have shared the forest. When their warrior code is threatened by mysterious deaths, a house cat named Rusty may turn out to be the bravest warrior of all.

The time has come for three kits of ThunderClan--Hollypaw, Jaypaw, and Lionpaw--to become apprentices. Grandchildren of the great leader Firestar, all three possess unusual power and talent. But dark secrets surround them, and a mysterious prophecy hints at trouble to come.

Jayfeather and Lionblaze are prophesied to be two of the three cats who hold the power of the stars in their paws. Now they must wait for a sign from StarClan to tell them which of their Clanmates will complete the prophesy. Soon a StarClan warrior will visit a new ThunderClan apprentice, and the lives of the three chosen cats will be forever linked.

The four bears finally arrive at the legendary Last Great Wilderness, thinking it is the end of their long journey, but they discover that their true mission has really just begain.

As Hollypaw, Lionpaw and Jaypaw, grandchildren of the legendary Firestar, continue their training to be warrior cats, each is haunted by a different internal struggle that could lead to trouble for all Clans.

Kallik, Lusa, Toklo, and Ujarak unite and begin their journey to discover what it means to be a bear in the wilderness, and when they gather near a remote lake to learn from their elders, they learn that one of their group is in danger, as not all bears have the best intentions.

The warrior cat Clans arrive at their new home and set about exploring and fighting over the unfamiliar territory.

"With an impostor leading ThunderClan, threatening to exile any cats who challenge him, a small but growing group of cats must find a way to expose the truth and return ThunderClan's rightful leader-before the tensions among the Clans erupt into war."--

Tigerclaw is back and more dangerous than ever as the new leader of ShadowClan, but he is not the most terrifying enemy Fireheart must face as a new force sweeps through the woods.