Cassie Andrews is having a bad day. She's just been given what she's wanted her whole life - the chance to start again. Transported to the fantastical world of Tiavalis, she's looking forward to having the adventures she never got a chance to experience on Earth. Now all she has to do is prevent an apocalypse which is scheduled to happen in two months time. The only problem? Nobody on Tiavalis seems to know about it. And nobody is inclined to believe her. Meanwhile, in the Vokraavel System, Alystair is also having a bit of a nightmare. His research world Tiavalis has been invaded by humans. And as the only Humanities expert in the lab, he's been chosen to enter the world and eliminate them before they screw up the simulation. The fate of the lab - and his romantic prospects with the new lab intern - rest on his performance. All he has to do is to make sure that the end of the world goes ahead as planned. No pressure.