Last one for this year!
When she was a child, Iwanaga Kotoko was chosen by youkai
(all kinds of supernatural beings, spirits, etc.) to become their Deity
of Wisdom in exchange for one eye and one leg. With her sharp mind, she would help these supernatural
beings whenever they were in trouble they themselves couldn't solve,
acting as arbitrator and detective. Ever since, Kotoko has become a feared figure in the supernatural world together with her reluctant boyfriend Kurou (who has supernatural powers himself), as they solve quietly solve problems that involve the supernatural. While few people in the 'normal' human world know anything definite about her link with supernatural, Kotoko, as the daughter of a family in good standing, has gained a reputation as an extraordinary problem solver among the people in a position to know. While anything on Kotoko is extremely hush-hush, those with connections know that if they find themselves involved with something that might be not be quite "normal", Kotoko can probably sort things out.
Invented Inference - Sleeping Murder is the third book in the Kyokou Suiri series, which has both Invented Inference and In/Spectre as its official English titles. A few months ago, I reviewed the second book, a short story collection, but in a way, Sleeping Murder can also be considered a kind of short story collection. For the first half of the book consists of short vignettes that focus on Kotoko as a detective, before we dive into the main storyline of the Otonashi Sumi murder. The previous two volumes focused more on the supernatural mystery plots, as well as the notion of the 'invented inference': this series has never been about finding the truth, as it usually involves supernatural beings. Instead, this series has been about cooking up lies that people were willing to believe. Most stories revolve around Kotoko coming up with a rational, realistic-sounding solution based on the available clues that humans were likely to accept, even though the truth is that some supernatural being did something. Invented Inference focused on what people fundamentally like about mystery novels, being a story about logical reasoning, but also about solutions that were entertaining rather than truthful or realistic.
Sleeping Murder is interesting in the sense that the notion of the invented inference takes a backseat in the first half, as the chapters here function more like a character study of Kotoko. In the first chapter for example, we follow a young Kotoko, back when she had just entered high school. Because the school's mysery club hasn't seen many new members and is dangerously close to being shut down by the school, the two remaining members try to convince Kotoko to join them, figuring that the school would never dare to close the club of the daughter of the well-connected Iwanaga family. The scheme hatched by the club president explodes in his face when Kotoko instantly sees through the president's true intentions, but ultimately, she decides to become a member of the club anyway, becoming what you may almost call friends. Several years later, the club president would recount another episode about Kokoto to his uncle, who is looking for information on Kotoko. In another chapter, we follow Kurou's older niece Rikka, who is on the run for Kotoko and Kurou as explained in the first book. She becomes the newest tenant in a rather troublesome apartment: the previous three tenants all committed suicide there. Rikka doesn't seem to worried by that fact though and seems to live a peaceful life there, becoming friendly with all her neighbors. She quickly moves out of the apartment the moment Kotoko and Kurou find her trail though, but before she leaves, she tells her neighbor that Kotoko will likely explain why there were three suicides in that room, and why there won't be anymore. While short, this was a pretty interesting mystery: the second person in the room to commit suicide had been dumped horribly by her boyfriend, and it was the same boyfriend who later committed suicide there too. However, he did that after three months living there and he had a new girlfriend, so it wasn't like he suddenly felt remorse. The solution involves the supernatural in a very clever way, and an excellent example of how concepts like ghosts can be used fairly in a mystery story.
The Sleeping Murder storyline makes up for the bulk of the volume and the part most in line with the other volumes. Three people have gathered to come up with a theory that will prove Gouichi's guilty of murdering his wife: Rion (daughter of the oldest son), Kouya (husband of oldest daughter Kaoruko) and Shin (second son). The one who comes up with the best solution will be given an advantage when it comes to dividing up the inheritance, but it's Kotoko who will decide who will provide the best solution that will fit the known clues and which will be convincing enough (as she alone knows that Gouichi actually struck a deal with a kitsune). What follows is an interesting conversation where Kotoko acts as discussion leader, skilfully leading the three family members to a plausible solution by pointing out contradictions and by secretly hiding hints in her utterances. As seen in the first novel, Kotoko's skills do not simply mean she can come up with a convincing solution, she also knows how to set them up so everyone will be willing to believe them. In order to do so, Kotoko will also uncover secrets nobody had ever thought about, and make everyone first come up with one theory first, only to have them also discard themselves and thus set-up the next theory. The way in which Kotoko acts like a teacher and slowly shows the path to her invented truth is as amusing as always. The murder case itself though is a bit simple, so it never becomes really complex, but the story does show off what Kotoko does best
And like I mentioned earlier, this book does a better job than the previous books at showing the character Kotoko. Whereas previous stories focused on her as a problem solver, this book shows how humans look at a fearsome character like Kotoko, a small girl who looks almost like a doll, but who hides a darkness far greater than anyone can imagine. The first half of the book showed Kotoko through the eyes of characters like her classmates and Rikka, while in the Sleeping Murder storyline, we see what happens if Kotoko is forced to work on a case which ultimately only involves human actors and see how her morals may not coincide with human morals.
Purely seen as a mystery novel, Kyokou Suiri - Sleeping Murder/Invented Inference - Sleeping Murder is probably not as strong as the previous two books. The episodes collected in this volume are intentionally designed to function as a character study of Kotoko, showing her off in various minor mysteries from different parts of her life. Some of these mysteries are quite amusing, but the limited length of these episodes do make the invented inference angle of the series weaker. In a way, Sleeping Murder also feels like a kind of set-up for the sequel, like a prologue for things to come. I don't know for sure whether we'll have something 'big' next time, but Sleeping Murder is like silence before the storm, focusing on Kotoko as we know her now before throwing her into a more dramatic storyline. Kyokou Suiri - Sleeping Murder is not the best volume in the series, but the previous volumes were highly entertaining and if you've gotten that far, it's definitely worth it to read this volume too as it's still an entertaining mystery novel.
Original Japanese title(s): 城平京『虚構推理 スリーピング・マーダー』