I am reading this for Modern Noir, and it fits that square quite well.
Rowling is have a rollicking good time exploring the various conventions of the mystery novel. The London setting is a strength, and, as always, her characterizations are solid gold. The mystery is less than riveting, but it's engaging enough that I don't really care.
Lullaby Town, a dark drive down some
rockspotted track. We are silent. Killers.
With gloves from the farmer’s wife we trudge
to a cold outbuilding, strip-lit and grey.
Machines and men turn in the shed next door.
Protests and filthy jokes from the doomed birds.
If you're into stuff like this, you can read the full review.
This FBI tale is so Joe Friday it took me a while to realise that it’s set in this decade. The man character is a thinker who still seems to have no awareness of how irrepressibly male his perceptions and assumptions are.
Im intrigued by the woman in black who seems to be the huntress of the title.
Its a relief to move to this find-the-baddy. Kind of noir' filled with attitude but free of real introspection after having lived in the long night of Scandi Noir.