Kelson Haldane is King of Gwynedd, the first liege of magical Deryni heritage in centuries. But the priesthood of the Eleven Kingdoms has no intention of ceding its power - even if it means inciting civil war.

In the kingdom of Gwynedd, the mysterious forces of magic and the superior power of the Church combine to challenge the rule of young Kelson. Now the fate of the Deryni -- a quasi-mortal race of sorcerers -- and, indeed, the fate of all the Eleven Kingdoms, rests on Kelson's ability to quash the rebellion by any means necessary...including the prescribed use of magic!