Humanity’s hope of salvation lies within a single laptop… A mutation in human DNA means no one lives beyond nineteen. Scientists working to reverse this pandemic died before their Salvation Project was complete, leaving behind the results of their research in a sealed vault – the Soterion. 122 years have passed. The civilisation of the ‘Long Dead’ is almost forgotten, the Soterion has been burned to ashes, and communities of Constants are tormented by brutal tribes of Zeds. Cyrus, Miouda and Sammy flee their burning city with a laptop rescued from the inferno. They believe it contains the key to the Salvation Project. But its batteries are dead, there is no electricity to power it, and murderous Zeds will stop at nothing to get it back…