The Murder on the Links (Agatha Christie) - 3/5 (re-read)
Second Poirot book's lighter tone from stuff like Hastings' romance and pompous Giraud character helps, as the solution hinges on convoluted layer upon convoluted layer even for the genre, such that for a Christie book it inspires less of satisfyingly snapping feeling in how various elements come together and more of "I guess, if these things happen to align together in order at that time." As said, the lighter tone somewhat alleviates such brain strain, and Christie is starting to nail the Poirot/Hastings banter and dynamics here.
Klara and the Sun (Kazuo Ishiguro) - 3.5/5
My second Ishiguro novel after Never Let Me Go, which I read around 2008-2009 so my memory is a bit fuzzy, but I remember as being so evocatively melancholic. Klara and the Sun has many thematic and stylistic overlaps with that book, but constricting a viewpoint entirely to the titular character's limited understanding of the human world. The tension between the humans' action and what Klara interprets of it and their world is fascinating and what drives the main narrative, but also what makes it doesn't measure up to that previous work I've read, as it feels less cohesive, and the humans' inter-drama are also at times less interesting and/or unconvincing. That said, I loved how the book doesn't explain the rules of this sci-fi world unless/until Klara knows or is informed about them directly, every of other characters' interaction with her is always compelling, and that coda is an exquisite heartbreaker.