Valkyrie will take on the High Sanctuary itself to recover her sister's lost soul, and Skulduggery is unable to stop her. Twelfth in the popular series.

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."