For many generations the people of the spires have believed they were the only living human race left on their planet. They had been told that Daemons had inhabited the planet's surface and driven their ancestors into the domed cities.

When Markus and Filona fall in love, they break the strict laws of the domes. Markus is son of the Prefect of Alpha Dome, Filona an innkeepers daughter and their union is forbidden.

The couple flee to the planet surface, despite thoughts of the dangers they might face. What they find there will astound them. The decisions they make for their future will have a dramatic effect on the whole planet.