Skulduggery and Valkyrie are back. We can't say much but we can say this: Skulduggery and Valkyrie are going to team up with 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. There are still secrets to reveal and there were more horrors for them to face. They survived the first series. But they're really going to wish they hadn't.
