Allegiances are shifting among the clans of warrior cats that roam the forest. With tensions so delicately balanced, friends can become enemies overnight, and some cats are willing to kill to get what they want. Fireheart is determined to find out the truth about the mysterious death of the former ThunderClan deputy Redtail. But as he searches for answers, he uncovers secrets that might be better left hidden....

For generations, four Clans of wild cats have shared the forest according to the laws laid down by their ancestors. But the warrior code is threatened, and the ThunderClan cats are in grave danger. The sinister ShadowClan grows stronger every day. Noble warriors are dying - and some deaths are more mysterious than others. In the midst of this turmoil appears an ordinary housecat named Rusty...who may turn out to be the bravest warrior of them all.

Fireheart's traitorous enemy, Tigerclaw, has been vanquished and exiled from ThunderClan - but Fireheart can't shake the feeling that he is lurking in the forest, waiting for a chance to strike. In the heat of a blazing summer, Fireheart struggles to handle sinister omens, an apprentice with a shocking secret, and a devastated Clan leader who is a shell of her former self. And as the forest gets hotter and hotter, every cat braces for the coming storm....

ShadowClan has chosen Tigerclaw as their new leader, and Fireheart fears that this old enemy still harbors dark plans for vengeance on his former Clan. A mysterious threat has invaded the forest, placing every cat's life in peril. And Fireheart's beloved leader has turned her back on their warrior ancestors. Fireheart can't help but wonder if she's right - has StarClan abandoned them forever?

The time has come for Fireheart - now Firestar, leader of ThunderClan - to face his destiny. Tigerstar's sinister ambitions have brought the whole forest to the brink of a terrible and deadly battle. Now prophecies will unfold, and heroes will rise....

Moons have passed since six cats set out on a journey to save their Clans. Now, they are traveling home again, but on their way through the mountains, they meet a tribe of wild cats with a secret...and their own mysterious prophecy to fulfill. In the forest, Firestar and Leafpaw watch ThunderClan’s world crumbling around them. Will the questing cats make it back in time to save the Clans, or will they be too late?

The young cats who set off on a quest many moons ago have returned with a chilling message: The Clans must move to a new home or risk extermination. But the dangers waiting for them beyond their borders are impossible to predict, and the cats have no idea where to go. What they need is a sign from StarClan....

The Clans have finally arrived in their new home, and now, they must struggle to establish territories, learn hidden dangers, and find a new 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, they begin to realize the threats they face in the forest may not be as perilous as the threats they face from within. 

New territory brings new troubles for the fierce cats of the warrior Clans, and former allies are acting strangely hostile. As divisions between the Clans grow deeper, Firestar’s daughters face troubling decisions. The choices they make now could affect ThunderClan for generations to come...and with an unexpected enemy preparing to attack, their courage and strength will be needed more than ever if the Clan is to survive.

As shadows of the past continue to plague the forest, Brambleclaw is haunted by a dark figure on a dangerous quest for revenge and must struggle to remain true to his Clan. A sinister path is unfolding, and the time is coming for certain warriors to make the choices that will determine their destinies...and the destiny of all the Clans. 

A secret prophecy shapes the lives of Firestar's grandchildren, and Jaypaw believes that the cats of the ancient Tribe of Rushing Water may hold the key. But when he, Hollypaw, and Lionpaw travel to the Tribe's mountain home, they may discover secrets they never expected.

Lionpaw, Hollypaw, and Jaypaw, grandchildren of the Clan leader Firestar, are thriving as ThunderClan apprentices. Yet their new responsibilities bring new dangers, and each young cat is about to discover darkness: in the past, in the Clans - and in themselves.

As doubt sweeps through the forest, Jaypaw, Lionblaze, and Hollyleaf are determined to convince the Clans that StarClan is still vitally important to the warrior code. But darkness lurks in the most unexpected places, and one cat is about to reveal a secret that will rock ThunderClan to its core.

As Jaypaw, Hollypaw, and Lionpaw struggle with the weight of their destinies, a mysterious warning shakes the Clans' faith in their ancestors. All four Clans are in danger - and the fate of the warrior code now rests in the paws of three apprentices.

The secret of Hollyleaf's, Jayfeather's, and Lionblaze's true identities has been revealed, but one shocking question remains unanswered. Now Clanmate will turn upon Clanmate, and one more warrior may be lost forever....