Jamie and Anna are Time Runners—they keep history moving in the right direction. Their latest mission takes them to Britain in the 1950s, during the Cold War—when Anna was from before she fell through the cracks in time. But something's terribly wrong. Why is a Russian spy attending a dinner party held by the man in charge of Britain's nuclear development? Why is a ghostly image of Anna being dragged away by grotesque imp-like creatures? Why does the mysterious Mr. Prophecy never leave his room? And why is there a corridor reaching back through time hidden in the cellar? If Jamie and Anna don't find out quickly, it could be too late. It could be the end of the world.