The Temple and the Crown — Katherine Kurtz; Deborah Turner Harris

DARK AGE OF THE BLACK SWAN
England's tyrannical Edward I decimates the Scottish freedom fighters led by Robert Bruce, while France's Philip IV usurps control of the papacy. But far more than political power is at stake in Europe's wars. For the French and English kings are unwitting puppets of Luciferian alchemists called the Order of the Black Swan. And the Black Swan's true goal is to capture the sacred relics guarded by the mystic Knights Templar.

Now from the Highlands to the Holy Land, the Templars must use martial prowess and potent magics to wage a desperate war to save humanity itself from eternal damnation.