Isle Of Midnight: Last of the Lost Souls (Isle Of Midnight Series, Book 4) - Isle Of Midnight, #4

The end has come and not everyone will survive it... In the final installment, Jazz and the team face their most fierce battles yet. They'll venture into the vast and terrifying world of Oryx and face a ravenous Demon army. And while they rage against the evil on the outside, they will also face the evil within themselves. This story is filled with dark and twisted turns you will never see coming.