Firestorm (Book #1 of Caretakers) by David Klass
Unabridged audio - 9 CDs
A surprising good book. The main character is a little arrogant which makes him a little stupid at times, but overall a very exciting sci-fi-fantasy. The story revolves around the fact that Jack was really born 1000 years in the future after humans have destroyed the earth by destroying the oceans. He was sent backward in time as a baby to grow up (hidden from his enemies) and to find firestorm and use it to heal the world.