Kenya, 1947. A hunting expedition led by American writer John Remington makes a startling encounter, and then vanishes without a trace. Shortly afterwards, Katherine Austin, agent of the British Secret Intelligence Service, arrives in Mombasa. Her mission: investigate a series of mysterious sightings and incidents, of which the disappearance of the Remington party could be the latest. Undercover as a teacher, courted by colleagues who may be working for competing secret services, she’s about to enter a whole new reality...

Kathy, Fuchs and Merlin are now exploring the savannah, looking for the Remington expedition. With them is Tom, the young native guide – and sole apparent survivor – of the American writer’s party, who recounts the terrifying events that led him to run away. When the young woman and her companions finally discover Remington’s base camp, though, they find no trace of unusual animals – or bodies. But they’re quickly confronted to a series of increasingly weird events…

The mysterious events in Kenya are beginning to attract international attention – and maybe too much of it.After reporting to London, Kathy Austin returns to Kenya to continue her investigation. In the palace of Count Di Broglie, the young English woman finally meets the last survivors of the Remington expedition, but they lack material proof to support their stories. Kathy is ordered to obtain information on Irmanius, a rather inquisitive individual who’s been snooping around the country. Who is he working for? The Americans, the Russians… or some considerably more foreign power?

From the shores of Lake Victoria, Kathy and Remington witnessed an extraordinary event: the coming of a massive UFO. Stunned by the sight, they’re taken prisoners by Irmanius, who’s working for the Soviets. Faced with the oddness of their situation and its potential dangers, though, Westerners and Communists decide to team up. A temporary alliance that may not survive the fantastic discoveries ahead of them.

After the extraordinary events of Lake Victoria, the Soviet agents let Kathy Austin and her companions go. On their way back to Mombasa, the group stops to speak to Lord Balmer, who was taken in by the Maasai. The Lord has lost his mind, and tells them a wild story of extraterrestrials and apocalypse... but is the story so fantastic after all? Will Kathy manage to find an explanation to the mysteries of Kenya – and maybe tangible proof?