The ghost of an idea began materializing at a book signing last fall for “Haunted Ellicott City,” which details the history and haunting of 31 sites in and around the old mill town.

The book’s author, Ellicott City resident Shelley Davies Wygant, had chatted in September with Cynthia Lynn, landlord of Columbia Inn at Peralynna on Route 108, about her book and another author’s book signing that had been recently held at the hotel.

Wygant was later introduced to a filmmaker and other authors with similar interests — and quickly saw an opportunity to create an expanded book signing and film event with spooky overtones.

“Dead of Winter: Haunted Pajama Party” was born.

The open-house style event – featuring three authors, two artists, a filmmaker and a photographer — will be held 4:30 p.m. to 11:59 p.m. Saturday at the inn and doubles as a fundraiser. Historic Ellicott City Inc. will receive 50 percent of the proceeds from ticket sales and intends to earmark the money for flood relief on Main Street.

Tickets can be purchased for $10 on the event’s Facebook page or at etsy.com/shop/ HauntedEllicottCity.

Admission is included with a discounted room reservation at the inn, which is situated across from Clark’s Elioak Farm and was converted from a private residence 22 years ago. Wine and appetizers are included in the ticket price and psychic readings will be available for an extra fee.

Wygant, who was president of the Howard County Historical Society from 2009 to 2011, said she’s been fascinated by tales of hauntings in Ellicott City since