A Creature of the Night by Fergus Hume is a mystery novel set in Italy, featuring a haunting, gothic atmosphere. The protagonist pursues a mysterious figure linked to a troubled past involving a possibly murdered tenor, romance, and betrayal. Exploring the deserted Palazzo Morone, he uncovers secrets and deception, blending suspense, romance, and the supernatural. Hume, renowned for ‘The Mystery of a Hansom Cab’, was a master of suspense and mystery fiction in his era.