So a quieter than expected work day let me finish this up quickly...
The Deadly Touch of the Tigress by Ian Hamilton. (aka:
The Water Rat of Wanchai). The first of the
Ava Lee thrillers. It wasn't until page 180 that I finally got properly interested. Up to there it was mostly travelogue*. The main character is not without interest, aside from the obvious we also learn she is not a particularly nice** person. After page 180 things stop going all her way and the story finally gets an edge to it, which made the last 100 pages a fun ride. All up I'm letting this scrape a 3/5.
*
I'm not averse to a good travelogue, especially when - as in this case - the author is writing from personal experience, but it's not something you expected from a thriller.
** (spoiler-ish)