I've seen the "Daisy Dalrymple" books around, but this is the only one I've actually read; being eighth in the series, perhaps it is not a very fair introduction to the regular characters, whom everyone is assumed to know by this point, but I got the general gist.
Daisy is a Liberated Woman who has shaken the aristocratic dust of her ancestors off her feet and insisted on living in a tiny flat with a fellow career-oriented female friend, and is engaged to be married to a policeman she met during one of her previous cases, although it is a second time at love for both of them (cue Great War backstory). And both his mother and hers disapprove of this mixing between the classes from opposite viewpoints... although by this point in the series any family opposition is pretty much token. The book also spends an inordinate amount of time explaining how improbable it is that Daisy would get accidentally mixed up in so many of murder cases and trying to justify her involvement in the investigation, which seemed like a misstep on the part of the author - it's generally better to let sleeping plot holes lie!
On flipping open the book to a random page (my usual method for judging its quality) I was unfavourably impressed by Daisy's 'flapper' pose and attempts at period dialogue, being pretty familiar myself with the genuine article in books and magazines of this era - but when I turned back to the beginning the author managed to win me over completely within a matter of a few paragraphs by starting the book off from a totally different viewpoint, that of the (male, educated, tense) culprit planning and executing his crime, which is genuinely tense and gripping, not least because the author takes advantage of the spur-of-the-moment narration to keep us largely in the dark as to what, exactly, he is attempting to do. Concealing information from the reader is always a tricky game, but in this context, where the narrator has no reason to sit back and start info-dumping about the plan he is in the middle of carrying out, it works very well... and, for whatever reason, when I reached the part of the book written from Daisy's viewpoint this time, it didn't strike me as so annoying any more. Possibly because I was now highly invested in the outcome of the theft!
Being familiar with the Natural History Museum, I was able to envision it vividly as Daisy makes her explorations, and that setting was probably a big part of the charm of the book... although I know a lot more about dinosaurs than the protagonist and was a bit frustrated by her professions of cluelessness. I only spotted one definite historical blooper, in a very minor peripheral piece of scene-setting that I just happen to know something about: whatever it was that Daisy saw hauling 'a train of barges' down the Thames in the 1920s, it wasn't a narrowboat, because they don't have enough engine power (especially on dangerous - for them - tidal waters) to handle more than their own single unpowered butty. I'm guessing that the author was making the common confusion/conflation between 'barge' and 'narrowboat', which would have been period-accurate enough, but unwittingly applying this in reverse...
With hindsight the culprit's 'voice' at the beginning of the book does fit the revealed criminal at the end of the book better than any of the other characters, and I probably ought to have been able to guess the solution on that alone, but I don't normally even try to deduce the ending of detective stories, and didn't make any attempt to do so here. There were too many characters floating around (I'm pretty sure new ones, e.g. the various curatorial assistants, were still turning up at least halfway through the plot) and too many tangential things going on - only Carola Dunn is no Dorothy L. Sayers in that respect. I can't see myself wanting to reread this one for the background scene-setting!
I enjoyed this well enough as a quick read, which is what I picked it as, but it doesn't inspire me with any immediate intention to launch further into Daisy Dalrymple. And looking at the other Goodreads reviews I rather get the impression that the elements I enjoyed about this one are somewhat atypical in terms of the series :(