The Excitements by CJ Wray (PB)

Meet the Williamson sisters, Britain's most treasured World War II veterans. Now in their nineties, Josephine and Penny are in demand, popping up at commemorative events all over the country. Despite their age, they're in great form-sprightly and sparky, and always in search of their next "excitement." This time it's a trip to Paris to receive the Légion d'honneur, accompanied by their devoted great-nephew, Archie.

Archie suspects the sisters are hiding secrets about their wartime careers. And this trip to Paris is not what it seems either. Scandal and crime have quietly trailed the sisters since the war. Now armed with new information about an old adversary can these much decorated (but admittedly ancient) veterans pull off one last heist before the curtain comes down on their illustrious careers?