The climate apocalypse predicted by today's scientists has finally come to pass.The Eurasian landmass has become one vast desert scorched by ferocious heat.Most of humanity has been obliterated by the ferocity of heat, rising oceans and storms of unimaginable force.All knowledge of today’s science and technology and of our civilisation has been lost. Amanaar and Mayzaar, who live in the underground city of Kaimakla, discover that the oasis on which the city depends is drying up, and that they will all die soon from thirst and starvation.As a desperate measure, Amanaar organises a journey to cross the vast desert to their north in search of a safe haven.On their journey they face many terrors, but also stumble upon objects from today’s world which are incomprehensible to them.They meet Stinna who passionately believes in the truth of the legends of great cities and a vanished hugely advanced technological civilisation.Stinna persuades the two men to join her in the search for the truth and for an explanation of what happened.This is their story.