Gloria Doescher (left) shows Chris Julien (center) and Adrian Lee a photo of what her thermal imaging camera picked up during one of the vigils at Fairlawn Mansion and Museum in Superior. The three investigated the mansion along with other members of the International Paranormal Society, the first time in more than a dozen years that ghost hunters were allowed into the mansion. (Maria Lockwood / Superior Telegram)

The International Paranormal Society has visited Duluth multiple times. One of its visits included time on the SS William A. Irvin, another the mansion at Fairlawn. Adrian Lee, its founder, has a pretty unique gimmick — he talks about working at the intersection of history and paranormal science, spending time in archives to track historical records that help him make sense of the data his heat sensors and ghost boxes find. Triangulation yields truth, apparently.

Accounts of the society’s visit to Fairlawn can be found in the Superior Telegram story, “Ghostly pursuit of history.” More about Duluth exploits can be read in the book Mysterious Minnesota.