Now that she's established herself as an estate agent, Mercy Willow finds that she has an unusual ability. Whenever she goes to see a house, she doesn't just meet the living owners. She's also able to see, and talk to, the ghosts that still linger decades and sometimes centuries after their deaths. She's managed to get used to this strange gift, but a house on Sidle Street is about to put her to the ultimate test. Mercy immediately realizes that the house is haunted. But after meeting the ghost in one of the upstairs rooms, she starts to hear hints of a second presence. For many years, neighbors have reported hearing the cries of a child, and now Mercy finds herself wondering whether this house is hiding a dark secret. When she digs into the street's past, she soon discovers that something awful happened there years ago. Someone – or something – is still waiting for justice. And revenge. The Spirit on Sidle Street is the second book in the Mercy Willow series, about an estate agent in deepest Cornwall who develops the unusual ability to communicate with ghosts.