A Study in Scarlet
Doyle, 1887
this was the first Sherlock Holmes adventure.
I had reread the Sidney Paget illustrated stories a couple years back (there is a common hardcover edition that compiles four volumes of short stories with Hound of the Baskervilles) but had not read this one since I was a lad.

Here is the original cover, as found in wikipedia.
No, its not the edition I read. I suspect the original is mighty rare, as I don't think the novel was successful until republication a few years later.
Novel is neatly divided into two parts.
The first two chapters are the origin of the Holmes/Watson team: Watson returning from Afghanistan needs a roommate to afford living in London on a military pension, and is introduced to an eccentric character hanging round the chemistry labs at the hospital, who has found a flat on Baker St he cannot afford by himself.
Holmes shows off his reasoning skills to Watson in a series of minor displays while Watson argues his new roommate cannot possibly know these things, it must be a trick of some sort.
Remaining chapters of Part 1 relate the first mystery Watson witnesses Holmes solve, and introduce official police detectives Lestrade and Gregson. A corpse with no signs of injury, some clues only Holmes seems able to see but does not explain, and two highly competitive police detectives who each rush off to arrest the wrong person while Homes chuckles smugly.
Part 1 concludes with Holmes capturing the real murderer right in his Baker St flat, as witnessed by Watson Lestrade and Gregson. So far we have no clue as to Holmes's reasoning except from his own cryptic braggadocio, yet the captured man confesses. What the heck has been going on?
Part 2 suddenly becomes something altogether different, seemingly an unrelated novel told in the third person, and a distinctly different narrative voice from Watsons precise observational style. We watch the travels of the Mormons to Salt Lake City, similar to Moses' journey in Exodus, followed by a tale of rivalry for a young ladies hand in marriage in a community of polygamists, religiously ordained murder and vows of revenge.
Doyle sure makes the Mormons look bad in these sections, and I gather he apologised years later. Yet til this day there are still occasional news stories about not too different atrocities taking place in the various closed religious communities hidden up in the mountains of the west coast.
Story returns to London for the final two chapters, and back to Watson's first person narrative voice. The murderer does not repeat the backstory we have just read (so I wonder "who" is writing the first five chapters of Part 2?) but does precisely explain how he carried out the murders.
In the final chapter we get to the usual bit where Holmes explains his reasoning to Watson, and because he is jealous of Lestrade and Gregson receiving public credit for his own genius, he encourages his new roommate to write and publish what really happened.
A while back I watched the first episode of the Moffatt/Cumberbatch/Freeman version of Sherlock Holmes set in the modern day. The scenes where Holmes and Watson first meet and move in together are almost exactly adapted from this book, except for period trappings. It's an impressive bit of temporal transposition: Not only is the British army back in Afghanistan, but big city rent is even less affordable to a bachelor living alone than in 1887! so that all makes sense.
The mystery Homes solves in the teevee episode shares some key elements...
Spoilermurderer is a London cabbie, and offers his victims a choice of one poisoned pill or an identical placebo
...but otherwise not similar, in particular there is no Salt Lake City backstory.
Last edited by caractacus potts (3rd Dec 2020 17:21)