Skulduggery and Valkyrie are back in the tenth instalment in the bestselling Skulduggery Pleasant series - an incredible and unexpected treat for the legions of fans around the world.

We can't say much but we can say this: Skulduggery and Valkyrie are going to team up with beloved characters from the first 9 books as well as an all-new cast, including new teen co-star Omen Darkly, for an adventure that takes the story to truly global proportions, while answering questions that go right back to the beginning.