After Thunderclan's former deputy, Tigerclaw's banishment after he ambushed Bluestar with several rogue cats, outcasts of the Shadowclan, Fireheart is worried. Without the support of his best friend, Graystripe, after he had joined with the Riverclan to be with his kits, Fireheart doesn't know who to turn to. Bluestar is out of her wits, raving about how she couldn't trust Starclan and the warriors' ancestors anymore, which leaves Fireheart to pull the broken clan together. Complications occur when Cloudpaw mysteriously disappears. Along with his new female friend, Sandstorm (is it love?), Fireheart sets off to find his apprentice and stumbles upon Ravenpaw again. It turns out that the twolegs have taken his sister's kit, but dogs are gaurding the house. Eventually, the three cats rescue Cloudpaw, only to be chased down by dogs. Luckily, the escape and return to the camp. Then, a peculiar scent wafts into the air. Fire spreads into the woods, quicker than lightning. The Thunderclan flees blindly into the Riverclan territory for sanctuary, but not without losing two elders and their beloved medicine cat, Yellowfang. After that, Bluestar is totally devastated and says that Starclan betrayed the Thunderclan. Now, for the first time, she refuses to go to the Gathering, leaving Fireheart to take charge. They arrive at the fourtrees, where the clans meet, only to find a bitter surprise. Tigerclaw is now Tigerstar and the leader of the Shadowclan cats. You know what that means! Readers will be caught up in the riveting suspense of this book, refusing to let go until the very last page (there is a cliffhanger).