Detached and unwordly paleontologist Howard Beamish is on a journey that is to change his life. Travelling to Nairobi, his plane is forced to land in Marsopolis, the capital of Callimbia, where Cleopatra's sister entertained Antony. Also on the flight is Lucy Faulkner, a journalist with a sketchy knowledge of Callimbia's political turbulence. As chance throws them together, Howard and Lucy become embroiled in a revolution that is both political and personal.