Devil's Engine
4 primary works
Book 1
Marlow Green is a high school boy in New York who is always in trouble for vandalism and acting out, until one day he stumbles into the middle of a battle with a demon, and learns about The Devil's engine--an ancient machine which can grant anything you wish for, in exchange for your soul.
Book 2
"Fifteen-year-old Marlow understands that their former leader must be stopped from using the two Devil's Engines in his control to open the gates of hell--something Boyd cannot do until he discovers the location of a mythical third machine. Marlow and Pan must take up this deadly duel with an all-powerful enemy that seems utterly impossible to win"--
Book 3
Book 3
After Marlow makes a deal with the Devil to get himself and Pan released from Hell, war breaks out and the friends have only each other, and hope, to combat demonic creatures and monsters.