THE SIGN OF FOUR SPIRITS

Just because Sherlock Holmes is no longer among us doesn’t mean his methods can’t be used to solve crimes.

Gemma Doyle, a transplant from England who shares a home and business with her globetrotting great-uncle, runs the Sherlock Holmes Bookshop and Emporium at 222 Baker Street in Cape Cod’s West London. Now that a psychic fair’s in town, Sir Arthur Conan Doyle’s books on spiritualism are flying off the shelves. Gemma has no interest in such things, but many of her friends do, especially Sherlock devotee Donald Morris and former pop star Bunny Leigh, who go to the fair and end up inviting several friends to a séance. Somehow Gemma and her friend Jayne Wilson, half-owner, manager, and baker at Mrs. Hudson’s Tea Room at 220 Baker Street, get talked into attending along with Donald, Bunny’s daughter, another employee, and two couples Gemma met at her store. Before the séance begins in the library at the home of wealthy Rebecca Stanton, Madame Lavalier asks Gemma to leave: “Your skepticism is not wanted here,” she says. Gemma sits outside the door but finds it difficult to hear everything inside because a storm is raging overhead. When Madame is killed, chaos ensues, and Gemma calls the police, who arrive in the form of her boyfriend, Det. Ryan Ashburton. Given Gemma’s reputation for solving murders and the very limited group of suspects who could have stabbed Madame with a hat pin, it might seem an easy mystery to solve, but nailing down the motive is anything but.

Fans of Holmes and the occult will enjoy following the Great Detective along the trail.