Adam has never felt as though he belonged in the little commune nestled in a back corner of the megacity. Life is easy enough. He is respected and admired, but his sense of purpose eludes him. When he and a group of scaversthe provision gatherers of the communebreak down the door to corridor fifty-eight in search of more supplies, they unwittingly release a horde of nightmarish creatures. Adam is thrust into a journey to save humanity and discover the truth about the megacity, the creatures, and, ultimately, himself. The trouble is, Adam isn't sure he's ready to face any of it.