Aimed at 14-18 year-olds, this fantasy adventure follows Harold Porter, a grieving but gifted lab technician who is caught in an implosion at his university workshop and wakes up in a disused rail-yard surrounded by the 12 orphaned Children of Exodus who think he's their saviour, the Light-Father.
He realises that he has been given a new reason to live: to save these children from the insane Order of Christ the Healer who unleashed the Revelation Virus six years ago that killed their parents and most of mankind.
In a world of perpetual rain and drowned lands, he has barely enough time to get to know these extraordinary children before the Order and their creations, the Tally-men, appear to hunt down and 'Redeem' the last survivors of those they deem 'Unworthy'.
Harold learns that the Order has an ancient enemy known as the Motherhood; a small band of Wiccans with extraordinary powers. They tell him that their only chance for survival is for him to lead the Children, the Motherhood and their Ferals - children horribly mutated by the virus - to take on the Order itself in their vast stronghold, the Great Abbey. The Motherhood knows that an even greater evil awaits them at the Abbey - the true demonic power behind Great-Abbot Schimrian and the Order.