Tom and Dr. Harker are back and this time their adventure takes them outside London. They visit Mr. Gibbs, a friend in Norfolk, who has recently unearthed fabulous Anglo-Saxon treasures from an archaeological excavation. They are believed to have belonged to the East Anglican king, Redwulf. Local legend tells of a ghostly guardian of the king's tomb and a curse against anyone who threatens it. When not one but two murders occur in the household, it is hard to dismiss the legend. With everyone feeling threatened and the atmosphere of hostility increasing, Tom and Harker investigate and discover that Mr. Gibbs's wife seems to be behind the attacks. But when he glimpses a solitary figure on the horizon and a body is found in the sand dunes, Tom begins to wonder if there is, in fact, truth to the legend. Will he be able to solve the mystery before it’s too late?