Katelyn Michaels plans on hating every moment of her visit to Mont Saint Michel with her father’s new French wife. Once there, she is confused when she experiences sensations of déjà vu as she and her younger brother explore the medieval village and abbey. She is even more disturbed when she is confronted by two unusual young men, one who insists she has a sacred mission, and the other who will stop at nothing, even murder, to prevent her from fulfilling her destiny. When the oddly-dressed but alluring Nicolas slips Katelyn a strange medallion, she is whisked back through time where her Watchmen hosts tell her she is the only hope to save Mont Saint Michel. Even worse, she learns that those trying to destroy the mount are led by a fallen angel intent on learning the mount's closely-guarded secret. Katelyn is torn by feelings of anger at being taken back in time, inadequacy at finding a modern solution for a medieval problem, and responsibility for the mount’s starving inhabitants. She is also perturbed by her surprising attraction to the ill-tempered Nicolas. Will she stay to learn why she was chosen by the Archangel Michael and find a way to save his mount?

The Sword of the Maiden is Book 2 in The Watchmen Saga, which begins with Book 1: The Keys of the Watchmen. After being abruptly separated from Nicolas le Breton during the battle to save Mont Saint Michel from the English siege in 1424, Katelyn Michaels finds herself back in her normal twenty-first century life as an American teenager. Depressed and anxious to be reunited with Nicolas, she is comforted when a series of events and impressions lead her to believe she is being prepared for another mission as a Watchman. After her beloved mentor, Jean le Vieux, comes to her in a dream and gives her the injunction to “Learn of the Maiden and take her the sword,” Katelyn understands that her mission involves assisting one of the most iconic figures in all of French History. Katelyn is once again whisked back to the turmoil of medieval France during the Hundred Years’ War and to Nicolas. However, before the two can consider the future of their relationship, they must first complete their mission to take the sword to the Maiden. Little do they know that their old nemesis, Abdon, is already on their trail and will do everything in his unhallowed power to stop them.