Requested by a frightened Lady Elisabeth Montague, Holmes and Watson travel all the way to the Montague home, situated on a remote desolate island, to investigate her somewhat fanciful fears.
Are the family in mortal danger? And why have the Montagues, once the darlings of London society, now shut themselves away from civilization in this bleak, god-forsaken retreat?
As the Montague murders begin, Holmes finds himself drawn, ever closer, to the dreaded Montague madness....