Here's your semi-regular "hey, there's a Honkaku Discord server" message!
Oh, so I read this book 14 months before writing this review...
Kubinashiyakata no Satsujin is the second book in the Maid Detective Shizuka series, but the third time I'm discussing this series because I don't read things in order. The stories are set in the Meiji period and feature Shizuka as the series detective: a mysterious woman of Russian descent who seems to be a cold, but efficient and effective housekeeper, but who can have a rather sharp tongue when pushed and she's in possession of an even sharper mind. She works for a different family in each story, so you can basically start with any book, as there's not really a chronology or direct connections between stories. What is interesting about these books is that they are quite short, but each of them focus on very specific themes, like the mitate satsujin (murders patterned after something, like nursery rhymes) in the first book, or locked rooms/impossible crimes in the third. Each of these books approached these themes from both a "straightforward" angle, as well as a more meta-angle, like in the first book Shizuka planning to destroy all the paintings all the murders there were mirroring, because then the murderer had nothing to mirror.
The headless corpse is of course a very common trope in mystery fiction, and if you have two or three of them, you of course start asking the usual questions like "Does the body really belong to the believed victim, as there's no face to verify?" But as this book is titled after the trope, and considering other books in this series have approached familiar mystery themes from a meta-angle, I wasn't too worried about this aspect, as I was sure Tsukihara would still manage to present an interesting twist to it. Mind you, I don't think the two books by Tsukihara I read previously were perfect in their execution, sometimes with some dodgy tricks, but at the very least, each of the books gave me food for thought as they tackled the familar tropes in interesting ways, so yeah, I can forgive them for stumbling a bitand in general, I still think they can be fun reads.
In a way, Kubinashiyakata no Satsujin is quite similar to the previous two books I read and as I'm writing this review some time after I read it, I do have to admit I had to check a few times because some scenes are just so similar and I wasn't sure in what book they occured. This book is perhaps the best at the horror aspect though. You follow Karen awakening with partial loss of memory and slowly sees her suspecting her family is keeping something secret from her, and while we the reader know Shizuka is the detective, it does feel like those Gothic horror novels where you can't trust anybody, especially as this is set in an old house on a private island. The one big question is of course the courtyard: the house itself consists of four wings, connected to each other with corridors so you have a large square courtyard in the middle, but only one door in the North Wing leads into the courtyard and it's usually kept locked. At the centre of the courtyard is a mysterious building with seemingly no exits, and of course, you can guess this place will play a big role in the mystery. It's a shame the book is pretty unclear when it comes to the actual floorplan of this building, and a diagram would've helped so much in solving this mystery, for some elements of the mystery can only be solved if you happened to remember the textual description of where the rooms are etc., even though a proper diagram would've helped so much. Now I think about it, the third novel was also a bit vague in explaining the floorplan of the building there, so that was an issue Tsukihara didn't improve upon. Nonetheless, the house itself is pretty creepy, and this book is perhaps the best at atmosphere of the ones I've read.
But the big theme of the book is of course decapitations, and fun things are done here! Shizuka of course immediately ponders about the question the moment they find the decapitated body of Reika, and even challenges the murderer to show them the victim's head, or else she's not going to believe the body is Reika's. Shizuka does more of these meta-attacks on the murderer, like threatening to injure everyone's faces so they don't have faces anymore, meaning there'd be no reason to decapitate any victims anymore if the reason is to obscure their identity. I love these pro-active suggestions Shizuka makes to counter these familiar mystery tropes and that's what makes these books worth a read. Shizuka is the type of detective you either like or don't, I think, as she can be cooooold, but I really love how she's always willing to do the drastic to mess up the murderer's intentions. And yep, the fun part is seeing how the murderer reacts to Shizuka's challenges of course, and ultimately, we are actually presented with an interesting explanation why the murderer in this book is decapitating their victims, and it's pretty surprising one! It was not at all what I had expected, so it wins points there, and while the idea itself is actually one of the more "logical" ones, it's the application to this particular story that works really well for me.
In fact, I think that of the three Shizuka novels I've read now, I enjoyed Kubinashiyakata no Satsujin the best overall. It is a smooth read due to the Gothic horror-esque approach with an amnestic narrator and while the tricks in this book are less "grand" compared to for example the next book, I find it's a more balanced story, improving a bit on the very hasty first book and not being as crammed as the third book. Given the books are not really connected strongly to each other, one could decide to start with this one first. One thing though, I still don't really understand the Meiji period setting and Yokohama specifically, as each of these books feature closed circle situations somewhere outside Yokohama, so you very seldom actually get a sense of time beyond "sure, they don't have phones yet". I hope later books do more with the time period.