War is coming.
To avert catastrophe, Skulduggery and Valkyrie are sent on a secret mission that takes them away from everything they know, to a forsaken land of magic and grim, unrelenting terror. It is here that Valkyrie will have to fight the hardest — not only against the enemies who want her dead, but also against her own self-destructive impulses. It's only by crawling through darkness that she'll be able to once again stand in the light...
Derek Landy lives near Dublin. Before writing his children's story about a sharply-dressed skeleton detective, he wrote the screenplays for a zombie movie and a murderous horror film. "I think my career-guidance teacher is spinning in her grave," he says, "or she would be if she were dead."