Author Lisa Morton joins guest host Lisa Garr (email) to explore Halloween's history and folklore, from its ties to the ancient festival of Samhain to centuries-old beliefs about spirits. She’ll also investigate the history of demonic possession. Followed by researcher John Kachuba, who'll share experiences from his investigations of more than 100 haunted locations across the U.S. and abroad. Known as the Ghost Professor, he goes beyond ghost hunting to examine the deeper mysteries.

From 6-10pm PT, Art Bell: Somewhere in Time returns to 8/12/97 for a night of Open Lines, and a report from Linda Moulton Howe on a Bigfoot sighting.