Paranormal Investigations 4: in Limbo  (English, Paperback, Walter EH)

Leo owes the Fae promises, promises that are being called in by Jamie in a bid to help him escape the Realm of the Fae - even if that means entering Limbo and being accused of murder at an Agatha Christie convention. With her team consisting of a time travelling daughter, a satyr and a troll around her, Leo has to escape Limbo and prove her innocence. Not easy when everyone thinks you did it.