A WWII-era mystery that focuses on a lot of spycraft and London during The Blitz. Decent storylines that all kind of fit together, not too twee, good to see familiar characters again. There’s an awful lot of kind of up and down Maisie and her latest guy as well as a pretty big helping of Patricia Is Dramatic (for good reasons but still) so if you’re looking for more of Maisie-the-Detective, this book doesn’t have as much of that.