Vega Jane is 14 when she is secretly given a map that reveals a mysterious world and dangerous creatures beyond the walls of Wormwood, a place no one has ever left - or wanted to. Until now.

The map makes her question everything she has ever been told about the place she calls home. Her friend Delph and her dog, Harry Two, are the only ones Vega trusts. Trapped by secrets and lies, they want freedom and truth.

But she will have to fight for freedom. And the truth may cost Vega her life.