Notes

Derek Landy.
603 p.
Summary: Valkyrie has discovered she might be the sorceress destined to destroy the world. She doesn't feel she can tell Skulduggery what she's learned - and that's how all the trouble starts. With Valkyrie on a quest of her own, to prevent her evil destiny from coming to pass, Skulduggery and the gang are even more vulnerable. Thousands of wicked souls, desperate to get to Valkyrie, are willing to kill anyone in their way. Because they can possess any body, they could be anyone. Now Skulduggery, Valkyrie, Ghastly and Tanith can trust no one. Not even each other!
Skulduggery Pleasant ;
5.