Cole and his friends finally reach the fourth of the five kingdoms, Necronum, land of the dead, where they confront unexpected dangers and meet new allies.

The dragon Wearle is in turmoil: A human boy named Ren has bonded with a pair of baby dragons, and their connection has given him shocking and extraordinary new powers. Though some of the dragons suspect he is plotting against the Wearle, his dragon allies will do anything to save him. But Ren has an agenda of his own. Meanwhile, after the devastating war with the dragons, the humans, or Kaal, have accepted the leadership of a mysterious stranger....