- 1 - Scourge killed him once in The Darkest Hour.
- 2 - During the rat attack in FIrestar's Quest
- 3 - A tree fell on him or something when the Clans were escaping the forest in Dawn.
- 4 - During the greencough epidemic in Long Shadows.
Although the Erins said in a Wands and Worlds chat that he has less lives than we think. It could also be possible he lost a life in Sunset when he was caught in a fox trap, and the badger attack in Twilight, but none of those are comfirmed.
Firestar did lose a life in the fox trap and he has 1 life. Read the books