Furnace: Death Sentence by Alexander Gordon Smith (author) (UK edition)

“In order to escape them, I must become one of them. We were so close. We had one last shot at freedom and we failed. This time the warden will show us no mercy. This time, our punishment is a death sentence. Only death won’t come for us here, not in Furnace. It wouldn’t dare. No, our fate is something much, much worse. Because in the bloodstained laboratories deep beneath the prison lies the horrific truth behind the warden’s plans. Down here, monsters are made.”