Skulduggery Pleasant by Derek Landy:
Master storyteller Derek Landy spins a tale like a mix of Favlehaven (Brandon Mull) and Harry Potter, with a modern twist. When Stephanie Edgley inherits her famous novelist Uncle’s entire fortune, house, French villa ect… She is thrown into a world of mystery and magic where anything is possible. This book is one of the best I have ever read, don’t let the cover decieve you! This book is not for the faint of heart though.