Bachelor Spy: A Freddie and Grace Mystery

Spies Infiltrate Havensbooke Hall. . .and Another Mystery Adventure Begins
 
Stephen Blake's life goal is to protect people, especially those closest to him, but war in 1914 England doesn’t follow any rules. When Blake is informed that a noted German spy may have taken up residence at Havensbrooke Hall—his cousin Lord Astley’s estate, which is being used as a convalescent war hospital—he’s sent there to uncover the plot.
 
Lady Grace Astley has become a force to be reckoned with while Frederick is out on the war front. With Havensbrooke as a hospital, she’s shocked by the devastation the war is bringing home; but ever hopeful, she is determined to help these weary soldiers find some relief. However, not everything is as it seems inside Havensbrooke. Precious items soon start disappearing. . .and not just the kind that are worth a lot of money.
 
Through a case of mistaken identity, a comedy of errors, a kidnapping, and a race for time within the crumbling subterranean passageways beneath Havensbrooke, can Blake and Gracie work together to root out the criminals, thieves, and spies before time runs out?