Part 1 The Fall of Planet Rhyrum (The Kingdom of Larethain Mountain, #1)

This story is about four boys growing up on a planet named Rhyrum. They learn about love, magic, dragons, and the mysteries of the Crystal Cornnell. But they don't know about the darkness that lurks in the desert. Giant black beasts threaten the lives that live around Larethain Mountain. Will they be able to save their world?