Sy Middleton, a teenager living in Manhattan, enters a secret world when he is initiated into Earth-tribe and becomes a Triber.

In the Middle Realm, Tribers from Earth-, Fire-, Air- and Water-tribe train to enhance their powers and compete in monthly Lunar Festivals.

The Zodiac Council has protected the Lower and Middle Realms from the Darkforce for thousands of years, but the balance of power has shifted, placing humanity at risk. The Darkforce has stolen the Book of Dreams. Sy and his friend Joshua Ryderson embark on a quest to find it…