Prey: protectors of Arrasia, book 1

Gavriel searched everywhere for Rezzeion when he was abducted during the last Great War between angels and demons, but after 2000 years of searching and not finding Rez, he stopped looking. Rezzeion feels betrayed by the Angels... Especially Gavriel. After 2000 years of being tortured and abused, Rezzy's ready to off his old friend and bring his wings to Ira, Prince of Darkness, as a gift. Avery and the Protectors of earth just want a few days of peace and quiet. But on one warm summer night, their leader, Cassie Hayaus, gets a call. It's a frantic warning from Azriel. Rezzeion's back in town. And he wants to play a little game. History is repeating itself. Everyone has a secret. And if they can't stop Rezzeion, the world will burn. And the underworld will have a new ruler.