This Penguin collection puts together the 4 novels of Sherlock Holmes. The novels vary in quality, I think Hounds is the best one. 

I first started reading this in Dec 2022 - tried really hard to get into the writing style but it is longwinded and Conan Doyle is not great with prose. I paused this for a while and picked it back up again in Sept 2024, following along with the Stephen Fry narration on Audible. Fry's narration is excellent and made a big difference in my enjoyment.

You have to understand going into the Sherlock Holmes stories that Holmes is the superhero and we are just along for the ride. Don't try to match up with his logic or try and solve the case yourself - Doyle just doesn't give the reader all the details, only Holmes and his wild leaps of logic can solve these. 

These stories show very much their age in their colonialist attitudes towards foreigners (who are usually the bad guys) as well. They are oddly written with weird leaps between the Watson POV and suddenly dumping all the background and historic parts at us in the second half of the novels. 

Overall, they were enjoyable stories once I got past trying to solve anything and just let myself be taken along for the ride. I listened to the Stephen Fry narration and found it a lot easier to go along with it by listening than when trying to read it myself.