Cardinal Richelieu is dead, a victim of poison. The throne of France, which he has long protected, is once more unstable as rival factions vie for power. But the Cardinal has appointed two heirs: one to his religious position, and one to head the elite spy ring that has maintained France's fragile political balance. Francoise Marguerite de Palis, the Cardinal's lovely but low born niece, is devastated by her uncle's murder and vows revenge, which she sets out after immediately. Though the task is daunting, she at least has some formidable tools at her command. Not only is she now the head of the Cardinal's Eyes, but is arguably the most powerful Sorciere in all France. Shapeshifting into her character Biscarrat, notorious swordsman, she sets out to find her uncle's murderer. But with an unexpected ally. Handsome and dashing Jean de Treville, head of the King's Musketeers, is saddened to learn of the Cardinal's death, though both headed groups not generally fond of one another. Sadness turns to stunned amazement, however, when he learns who has been appointed to lead the Cardinal's spy ring and who is also, in fact, the swordsman who has bested him on numerous occasions. Not to mention the beautiful, and untouchable, wife of Court favorite, Antoine de Palis. But just as there is more, much more, to the enchanting Francoise, so is there more than simple murder afoot. Side by side, Francoise and Jean descend into a maelstrom of magic as they battle another powerful Sorcier, and enter a bloody race to obtain a fabulous jewel. And the throne of France hangs in the balance, supported only by the magic and mastery of the cardinal's heir.