For Genie and her great-great-aunt Adriana, their visit to Taverner Castle is a fairytale come true. To make their trip perfect, it also comes with the chance to track down Adriana’s missing necklace. For a ghost connected to her earthly possessions, this opportunity means everything.
Their search for the jewelry is cut short when a murder in a locked room spoils their Christmas and the two sleuths race against time to solve the crime and return to their own investigation. But with a slew of suspects within the ancient castle walls, Genie and Adriana have to prepare themselves for the worst or risk losing their chance – or even ending up haunting the castle together.