Kate Warne was the first female detective in the Pinkerton agency. Though little is known of her personal life, the author takes what’s known about her professional life and creates a plausible and accessible tale filling in the gaps and fleshing out a fascinating character. I especially enjoyed the reference to Washington’s hot summers! (Incidentally, I saw the author at a book signing in March, interviewing Jane Harper about The Lost Man which I will probably add to my TBR at some point.) Fulfills Litsy Booked2019 prompt: female detective. Read 1-5 May.