The Last time Byron Constantine took a case from Her Majesty, he lost his memory. But even he knows not to refuse Queen Victoria. When Mira Blayse agreed to be a personal secretary to an amnesiac detective, she never expected to be invited to Buckingham Palace. Yet here she is meeting with the Prime Minister. Assigned to protect the British Ambassador to the Ottoman Empire, the two don't realize this assignment will lead to murder, espionage, and not one, but three mysteries. Meanwhile, an unexpected encounter with a woman from his past leaves Byron reeling with flashbacks and new memories. But despite this miraculous recovery, he always forgets Mira. This new development, family expectations, and the ever looming Order of Circe all threaten their unique partnership, the truth, and their lives. With Mira's heart pulled every which way, can she accept that the man she loves will never remember her?