The Hotel Retlaw in Fond du Lac, WI, is allegedly haunted by its founder, Walter Schroeder, and others, with reported activity including disembodied voices, a female screaming on the seventh floor (especially in room 717), objects moving, TVs and lights flickering, and unexplained cold spots. The hotel's founder, Walter Schroeder, is believed to be behind the unexplained occurrences experienced by guests and staff, such as noises like furniture being moved or scraped, and faucets turning on by themselves. Guests and employees report hearing voices, including a female screaming, particularly on the seventh floor and in room 717. Witnesses have seen ice cubes thrown across halls and objects falling off carts and tables. TVs and lights have been observed flickering on and off. Sounds of furniture being moved or something being scraped have been heard. A significant drop in temperature has been reported near the mechanical room. Faucets have been known to turn on without explanation. The primary source of the alleged haunting is the spirit of Walter Schroeder, the hotel's founder. The unexplained occurrences have been reported by both guests and staff members of the hotel.