After achieving the impossible by escaping the laboratories and cells of Furnace Penitentiary, Alex, injected with superhuman abilities, must uncover the last of Furnace's secrets--the truth about the man who built the prison.
Alex Sawyer has escaped his underground nightmare to discover that the whole world has become a horrible prison run by his nemesis, Alfred Furnace, and only Alex can stop him, even if that makes him the executioner.
After his failed attempt to escape from Furnace Penitentiary, Alex struggles to survive the bloodstained laboratories beneath where monsters are manufactured, with a death sentence--or worse--hanging over his head.
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.
Alex is framed for murder and becomes an inmate in the Furnace Penitentiary, where brutal inmates and sadistic guards reign, boys disappear in the middle of the night and return weirdly altered, and escape might just be possible.
Imprisoned for a murder he did not commit, fourteen-year-old Alex Sawyer thinks that he has escaped the hellish Furnace Penitentiary, but instead he winds up in solitary confinement, where new horrors await him.