Ethereal Voices — Paul Weightman

The luxurious Scottish Highlands, Blackstone Grand Hotel is a Aviemore institution that has entertained guests for more than a century and a half, offering some of the finest accommodations in the city. Famously haunted, the hotel draws tourists from around the world eager to encounter its numerous ghosts. The hotel is also known for being honeycombed with hidden doors and secret passages, enabling staff to appear and disappear quickly as they attend to the hotel's guests. Now some of the spirits in the Blackstone Grand have turned violent, even murderous. Elouise and Sandra must determine which ghost has become dangerous and remove it from the hotel before it can claim any more lives. They soon learn the hotel has secrets even darker than the notorious string of nineteenth-century murders that made it famous, and the powerful entities inhabiting it don't intend to leave without a fight.