On the Ark of Men, the animals no longer exist and the vegetation is dying. To ensure survival, Men have made a pact with the Caticians, inhabitants of the nearby Ark, for food. J and O's friendship is severely tested when both are chosen the same year to submit to the rules of the Pact with the Caticians.
Jean-Francois Abgrall, today the head of a private detective agency, was just a simple provincial gendarme back in 1989 when he was assigned to investigate a murder on a beach. Instead, his investigation put him on the trial of one of France's most terrifying serial killers, Francis Heaulme, who for eight years wandered the country committing some of the most brutal murders in the annals of modern crime. This is the true story of that manhunt, a tale of terror, suspense and determination.
On the planet Gandahar where peace reigns and poverty is unknown, this utopian lifestyle is upset by reports of people at the outlying frontiers being turned to stone. Sylvain is sent to investigate this mysterious threat.