The Phantom Honeymoon (1919)

Professor Tidewater tours Ireland with his two daughters to investigate the origins of ghost stories. After the girls leave him at Belmore Castle, reputed to be haunted, the Hindu caretaker Sakes relates the following tale: Henry Claven, Sakes' master, courted his beautiful neighbor Betty Truesdale, but when she became engaged to Captain Bob Lambert, Claven precipitated a duel by telling Lambert that he knew his mother was a negress. The duel, by Claven's request, required each man to bare his arm to a deadly snake. Because Claven secretly smeared a repellent oil on his arm, the snake struck Lambert. After Betty convinced Sakes to let the snake bite her also, the couple, as ghosts, took their honeymoon in a phantom automobile to India and Egypt, and returned to haunt the castle as happy lovers. Sakes shows the scoffing professor the room where the lovers died. He sees them leave their auto and chase the ghost of the recently deceased Claven. Afterwards, Tidewater and his daughters are convinced that Sakes mesmerized him.