On her first night shift in the Museum Historia in London, the blue-eyed security guard Pam Marwick dawdles along, expecting it to be an eventless and quiet night. She gets to know the cleaner Norris Mason, an elderly man who, as it turns out, is much more involved in the upcoming events than it seems at first sight. While strolling boredly through the corridors of the museum, Pam is startled by a loud sound which bodes ill. What follows is a series of incredible and mysterious events: Lucien Griffiths, a court priest from Ancient Egypt, resurrects the pharaoh Nathan Campbell, his wife Amber Dewhurst, the court members Marcus Bowen and Matthew Harding, and Marcus’s monkey , as well as the sisters Zara and . After some initial mutual distrust, Pam and the Egyptians go on a journey back in time to find out who murdered the pharaoh and what happened to his pyramid. Through their time travel not only does the group find out the reason for the disappearance of Nathan’s beloved tomb, but Pam, with the help of Marcus, also comes up with a plan to catch the murderer.