In this stunning sequel to their acclaimed historical fantasy The Temple and the Stone, coauthors Katherine Kurtz and Deborah Turner Harris return to the legends of the fabled Order of the Knights Templar, the mystical medieval brotherhood of warrior monks born in the crucible of the Holy Land Crusades. Returning to a brilliantly recreated alternate past, two of the world's premier fantasists spin a breathtaking tale of courage, destiny, duty, and magic that unfolds against a backdrop of England's tumultuous struggle with Scotland and the heroic exploits of Scotsmen Robert the Bruce and William 'Braveheart' Wallace.
 
Unwavering devotion to God and their magical order has carried noble knights Arnault de Saint Clair and Torquil Lennox into the heat of battle in war-torn Scotland in these dark days of conflict, only to discover that there are forces at work far more sinister than kings and crowns.
 
The English liege, Edward I, is determined to destroy the Knights Templar, who have sided with the enemy Scots, while in France, Philip IV, known as 'King Philip the Fair,' is driven by his greed for the legendary Templar wealth and would usurp the power of the Pope himself to attain their riches. But unbeknownst to either king, they are both in the thrall of the Knights of the Black Swan, a malevolent supernatural order with loyalties to Lucifer alone. On the eve of the decisive battle of Bannockburn, Saint Clair, Lennox, and their brave Templar brethren will be compelled to stand against these minions of the Devil, who are willing to see thousands die and kingdoms crumble to feed their unholy hunger for ultimate power.