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.

As they journey home to warn their clans of the coming destruction, the six cats, guided by StarClan's prophecy, meet an unfamilar tribe of cats with their own set of beliefs--and their own mysterious prophecy.

"The terrible Triceratons have invaded planet Earth and threaten to destroy the planet unless the Fugitoid is turned over to them! Unfortunately, no one knows what the heck the big horn heads are talking about!...It looks like the fate of the entire human race rests on the shells of our green heros."

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.

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.

Onestar, leader of WindClan, introduces two young kittypets to the warrior code, the history of each of the Clans, and legendary battles that have been fought.

In the fortress of King Eldred the Moody, Dane the Defiant receives honors and a magical rune sword that belonged to his father, but he also finds treachery that sends him and his friends on a quest to retrieve the sword from a thief who hopes it will lead to a fabled treasure.

A latest entry in the prequel story arc reveals new details about the history of the warrior cats and follows the efforts of Clear Sky to violently divide the territories of the forest cats in spite of Gray Wing's efforts to promote peace.

"Strange visions drive a young WindClan cat named Moth Flight to leave her home on a journey that will change the future of the new warrior Clans forever"--

"After the War of the Gods, the demons were cast out and fell to the world. Mankind was nearly eradicated by the seemingly unstoppable beasts, until the gods sent the great hero, Ramrowan, to save them. He united the tribes, gave them magic, and drove the demons into the sea. Yet as centuries passed, Gods and demons became myth and legend, and the people no longer believed. The Age of Law began."--Book jacket.