Everyone and their mothers know about the stories beyond the wall. Monsters in the north who delight in death. Monsters who snatched children from their homes for the fun of it. Monsters without a single shred of humanity in their twisted, cruel bodies. But when tales and truth get muddled, myths start looking less and less like fiction, Pelarius and Andelwin will have to confront things they didn't even entertain the possibility of existing.