The book will tell about the journey of the ark of Kila Si'ah, carrying 20,000 colonists to Andromeda: drells, elcors, batarians and quarians. A routine check during the journey reveals many drell colonists dying in cryopods and the pathogen that caused it. The virus begins to spread to other races, at the same time the equipment on the ship breaks down and it becomes clear that this is not an accident. Someone decided to get rid of the colonists - and the executive is still on board. The ship's systems gradually fail, causing panic among passengers. Worse, the virus causes swelling of the brain, causing insanity, hallucinations and violent behavior. If the crew cannot repair the equipment and find a cure, Kila Si'ah will never reach the Nexus.