The Un-Magician (Outcast)

The first book in the young adult fantasy series, Outcast.

In his world, Timothy is the only person without magical powers and has spent his entire life hidden on a remote island. When Timothy is finally taken back to the city of this birth, he is fascinated by the current of magic that fuels the world, and mesmerized by the buildings and orbs that hang weightlessly in the sky. But he is also marked for death. He just doesn't know why.

Alternate title: Magic Zero