October 1931. A geological fault line that runs across Dartmoor to Torquay is said to be the cause of all manner of ghostly sightings, which is positive news for the popularity of Lady Evelyn Underhaye’s Dark Heart Ghost Tours. However, when a series of bizarre and gruesome murders are discovered in the town, each bearing a striking resemblance to a different spectral visitation, it feels as if the spirit world is coming a little too close for comfort. And when Evelyn starts to receive cryptic messages linking her to the crimes, she turns to her new friends – Kitty and Nora Markham – for help. Believing less in the spiritual work and more in the evil of flesh and blood, Kitty and Nora investigate the murders to try and identify the truth before the Sticklepath Phantom strikes again.