England, 1546: A young Princess Elizabeth is surrounded by uncertainty and deadly conspiracies against her. She is not currently in line for the throne, but she remains a threat to her older sister and brother. Then comes an invitation from the Sultan in Constantinople who seeks to assemble the finest players of chess from the whole civilised world and pit them against each other. But once there, Elizabeth finds more danger than she left behind; the murky world of the court and the glittering chess tournament. She finds dark secrets, horrible crimes and unheard-of depravity.