The Ghosts of Blackthorne Island (A Jodie Shield Modern Gothic Mystery Book 2‪)‬

Originally built in the wilds of Scotland, the ancient, sprawling mansion had been hauled across the sea stone by stone to a remote island in the North Altantic by the Duke of Sotherby to serve a dual purpose. It was to be a prison for his son, Geoffrey Blackthorne, whom he had rescued from the gallows at Tyburn just before he was hanged for his crimes against women and his personal kingdom where he would be master of all instead of a servant to the King.
Time had passed since then…centuries… and now the last of his line has returned to her ancestral home. At 91, Florence Blackthorne decided she wanted to end her days in the place she had romanticized throughout her childhood. A place she had been far too young to remember during her brief visits there…had learned what she did know of it through photos and family stories. She had scoffed at the idea it could be haunted until she moved there with her maid and found out…to her horror… how very wrong she was. Determined to stay there at all cost, she writes an old friend who had been the head of the paranormal research department at the university where Simon had studied. He persuades Simon to help, but how is Simon going to convince a very reluctant Jodie she must come with him to Blackthorne Island?