When the clock in the central square of Bristol struck exactly twelve, a terrible crime was committed in an ancient castle with a centuries-old history and traditional tea gatherings—an execution of Baron Walker and his family members. William Mason is the son of a lord and a brilliant detective with many years of experience. He sees and feels the crime from the inside, so he systematically unravels the tangled web, pulling the causes out into the open. His patience and endurance are enviable. There are many riddles and inconsistencies in the crime he must solve. Will he manage? Will he uncover the truth? The criminal does not sleep, trying to throw the detective off the right path. And to make matters worse, strange ghosts appear in the dungeon of Belforsbrook Castle, luring him and leaving messages. Could the dead have risen by accident to signal the detective what to do next?