'Ghostwalk' by Rebecca Stott is a beautifully written, thought-provoking, literary novel. It’s also a page turner. Set in present day Cambridge, it’s the story of Lydia Brooke, who is caught up in a web of ghosts, time slips, scientific intrigue and murder when her ex-lover Cameron asks her to complete the book that his mother, a historian, was writing before she was found drowned---and, mysteriously, holding a glass prism in her hand. Why did this happen? The hairs on the back of your neck will rise with a frisson of exquisite terror as you discover the truth.