I really enjoyed this one. I had to do a bit of Googling since I didn’t know that much about the London Blitz and also had to look up some 1940’s British slang (N.B.G.)
I’d never heard of Lorac til I listened to the Carolyn Crampton’s terrific Shedunnit podcast, about women detective writers from the “Golden Age” of crime writing. I’ll be reading more Lorac, and you should check out Shedunnit.