How did Mosspaw and Volepaw die?

Mosspaw and Volepaw were murdered by Brokenstar.

(Then, he exiled Yellowfang)

NOTE: Mosspaw and Volepaw are ShadowClan apprentices. They were too early to be an apprentice when they were apprenticed during Brokenstar's leadership. To Brokenstar, Mosspaw and Volepaw were too weak so he murdered them.

Also Mosspaw and Volepaw's mother is Brightflower.

If you want more information, read Secrets of the Clans, or go to Warriors Wiki.