The Karsten Inn (now the Karsten Hotel) in Kewaunee, WI is said to be haunted by three spirits: its former owner, William Karsten; his grandson, Billy Karsten; and another unidentified spirit named Augustus. Visitors report hearing the sound of young Billy giggling or running down the hallways, and the overall atmosphere is described as a "happy haunting". Local paranormal investigators have also explored the hotel, documenting paranormal activity and energy changes. William Karsten: The hotel's original owner and namesake, whose presence is felt in the building. Billy Karsten: His grandson, who reportedly died at a young age and is often heard giggling or running down the hallways. Augustus: A third, less-defined spirit that is also believed to be present in the hotel. Guests and visitors have reported hearing the sound of a young child giggling or running in the hotel hallways, which is attributed to Billy Karsten. The hauntings are often described as "friendly" or "happy," suggesting the spirits are not malevolent. Paranormal investigations, including those by Meteorologist Brittney Merlot, have used devices to detect energy, temperature changes, and movement, potentially capturing evidence of the spirits' presence.