Firestar's Quest   

Firestar discovers that a group of rats was one reason as to why the ancient SkyClan fell apart. SkyClan plans an attack on the rats which takes place in an old abandoned Twoleg barn. They begin training for the battle, and recruit a medicine cat named Echo, now known as Echosong. Firestar loses a life and Rainfur dies, but SkyClan ends up winning the battle.