Leo Hunt Seven trees of stone

The third and final chapter in Leo Hunt's epic supernatural series.

It's time for Luke to pay his debt to the devil .

The first book, Thirteen Days of Midnight, was shortlisted for the Waterstones Children's Book Prize 2016 and longlisted for the Branford Boase Award.

Luke Manchett is coming to terms with his new life.

The life where his girlfriend is a witch, he's a necromancer, and he owes a life debt to the devil.

But that's just the start.

An invasion is coming - led by a spirit even worse than the devil himself.

And it's heading straight for Luke .