Immortal lovers, battling faiths, a kingdom torn asunder: love and war in the time of the Crusades. In the time of the Crusades, in a world at war, a prince of immortal lineage and a spirit of fire who was once an Assassin prepare to celebrate a royal wedding. But he is Christian and she is Muslim, and there are those who hate them not only for their disparate faiths but for their power and magic.