As a young warrior, Crookedjaw pledges his undying loyalty to RiverClan in exchange for the promise of power, not realizing that his pledge will haunt him when he becomes the leader of his Clan.

Three young bears of different species--one black, one polar, and one grizzly--travel on a perilous quest to the Northern Lights, escorting a shape-shifting grizzly cub whose destiny will affect them all.

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.

Firestar, leader of the Thunder Clan, sets off on a harrowing journey to find a long-lost clan of cats that had been forced to leave the forest many moons ago.

Fireheart, a full-fledged warrior cat, must confront questions of loyalty and identity as he faces the possibility of betrayal from within his own forest clan.

Rock, the keeper of the world beneath the world, tells about the most famous cats of the warriors Clans as well as the rogues, kittypets, and others, to three kits that have recently entered his realm.

After the warrior cat Clans settle into their new homes, the harmony they once had disappears as the clans start fighting each other, until the day their common enemy--the badger--invades their territory.

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

At the edge of the Endless Ice, the four bears Ujurak, Toklo, Lusa, and Kallik reach Star Island, where a large group of bears is in trouble but believes Lusa is destined to help bring back the favor of the spirits.

The end of the stars draws near. Three must become four to battle the darkness that lasts forever. . . .After countless moons of treachery, Tigerstar's Dark Forest apprentices are ready to lay siege upon the warrior Clans. As Jayfeather, Dovewing, and Lionblaze prepare to lead their Clanmates into battle, they await the arrival of the mysterious fourth warrior who is prophesied to help lead the Clans to glory.The darkest hour the Clans have ever faced...