King Henry II built Blenheim Palace for his mistress Rosamund to keep her far away from the jealousies of his wife Queen Eleanor. The present owner, the ninth Duke of Marlborough, married Consuelo Vanderbilt for her money so he can return his palace to its former glory. The pair shares an unhappy marriage though Consuelo does her best to run the palace.

Sleuth Lord Charles Sheldon and his wife Kate visit the Duke and Duchess. However, before they arrive, a servant vanishes without taking her possessions or asking for a reference. Charles believes that she was part of a band of thieves that are stealing valuables from the homes of nobles. He plants a mole inside the servants' quarters to learn if anyone else belongs to the gang. The spy uncovers the identity of another conspirator planning to rob valuables from Blenheim Palace when King Edward and Queen Alexandra visit. Charles and Kate try to ferret out the criminals before His Highness arrives, but the mastermind realizes that and alters the plan.

Meticulous research has gone into this extraordinary historical mystery to the point that readers will recognize Blenheim Palace on sight without a guide. Even with that depth of vividness, the investigation is clever as Kate and Charles play major roles in trying to unravel a conspiracy. Consuelo also is a critical participant coping with an unfaithful spouse who is rude to her even in public while preparing her home for the regal visit. Robin Paige continues to provide some of the best historical mysteries on the market today with this novel proof positive of that assertion.

Harriet Klausner