Maureen Paschal goes to Florence, where she begins training in the secret teachings of The Order of the Holy Sepulchre. Under the guidance of her new teacher, Destino, she discovers the fascinating story of Lorenzo de Medici - the godfather of the Renaissance and the greatest patron of the arts in history. But Lorenzo's obsession was not with culture alone. Instead, he worked carefully to create a body of work which would preserve a series of ancient secrets - secrets too powerful and dangerous to be committed to writing.

But Maureen's most explosive discovery affects the person closest to her, as she realizes that her lover, Berenger, shares an extraordinary legacy with Lorenzo de Medici. Both men were born under the auspices of a prophecy found in the early writing of the Bloodline - the prophecy of the Poet Prince. But as Berenger and Maureen explore the daunting task of filling Lorenzo's place in the 21st Century, they find themselves the subject of an ancient vendetta hell-bent on destroying the heresy and ending Maureen's life in the process.