The Phantom of Payne Priory

Mercy Willow just wants to get back to her old life as a Cornish estate agent. As soon as she sets foot in Payne Priory, however, she realizes that something is very wrong. A strange shadow haunts the building, and whispers of death can be heard late at night. Local children claim that someone or something is living in the priory's darkened rooms, and Mercy knows that there's only one way to uncover the truth.

The Phantom of Payne Priory is the eighth book in the 13-part Mercy Willow series, about an estate agent in deepest Cornwall who develops the unusual ability to communicate with ghosts. Readers are advised to start at the beginning of the series. This book ends on a cliffhanger.