1561. Queen Elizabeth faces a threat to her throne as Mary Queen of Scots declares herself the rightful Queen of England. To discover her rival's next move, Elizabeth dispatches a party of trustworthy intimates to Mary's court at Fontainebleau. Chief among them is Kate Haywood, who finds that the glittering balls and banquets soon turn deadly. When a beautiful member of the visiting party is murdered, Kate vows to find the killer. But the French court is a labyrinth unlike she has ever navigated before - and at every turn there are more traps set to spring.