The civilisation of the Alectors, which has farmed and developed all life on Corus to produce sustaining life force for their vampiric civilisation, must move wholesale from one planet to another every few thousand years as it exhausts the life force of another world. This time, two worlds have been prepared, and the time is at hand for the great move.
Corus is looking like the loser, to be abandoned by the civilising forces of the government of Alectors and used as a dumping ground for malcontents. This neither bodes well for the future of human civilisation, nor for the honest Alectors such as Dainyl, trying to hold everything together, as all systems are failing.
But the mysterious Ancients, the Soarers, are a force to be reckoned with, and they may hold a powerful and destructive trump card.