In 2013, the Breakthrough Bandwagon Books translated and published over half a dozen short stories by MORI Hiroshi, associate professor, engineer and somewhat of an experimental mystery writer, which included two short stories in his popular S&M series, "Sekitō no yane kazan" ("The Rooftop Ornaments of Stone Ratha," 1999) and "Dochiraka ga majo" ("Which is the Witch?," 2001) – collected under the title Seven Stories (2016). We had to wait until 2022 for the BBB to translate, serialize and publish the first S&M novel, Subete ga F ni naru (Everything Turns to F: The Perfect Insider, 1996). Since then, the BBB has published MORI Hiroshi's S&M novels Tsumetai misshitsu to hakase tachi (Doctors in the Isolated Room, 1996), Warawanai sugakusha (Mathematical Goodbye, 1996) and recently Shiteki shiteki Jack (Jack the Poetical Private, 1997).
MORI Hiroshi's Jack the Poetical Private, translated by Ryusui Seiryoin, differs from the previous novels as the plot has no fixed location. The Perfect Insider takes place at the Magata Research Institute on Himaka Island, Doctors in the Isolated Room is set in a low-temperature laboratory at the Polar Environmental Research Center and the backdrop of Mathematical Goodbye is Three Stars Mansion, but Jack the Poetical Private has a serial killer working the college circuit with a free roaming plot.
Jack the Poetical Private finds Sohei Saikawa, associate professor in the Department of Architecture, National N University, as a guest lecturer in the Department of Home Environment Studies at S Women's University. Saikawa is to teach a course to its third-year students, but his arrival coincides with a brutal, inexplicable murder. Satomi Maekawa, a second-year student from T University, was found inside the small, securely bolted log cabin behind the Home Environment Studies – normally used as a study room or meeting place. She had nothing on except her underwear revealing a shallow knife wound ("...ran in a straight line from the victim's left chest to her lower right abdomen") and beside the body, the log cabin was otherwise pristine ("...so clean that it looked like they had used a vacuum cleaner"). Soon there would be another locked room murder. This time, the victim is first-year student from S Women's University, Motoko Aida, whose body was found in the liquid nitrogen pump shed T University. She had also been strangled, undressed and worked over with a knife, but the wounds this time appeared to form the letter "Z." And, somehow, the murderer left the door blocked from the inside.
So the impossible murders of two university students, killed on each others campuses, should be grist on the mill of every academic detective, but Saikawa could barely be less interested. Only showing mild curiosity why the murderer "created such a locked-room situation in the first place." Saikawa actually figures out the locked room-tricks, but leaves the problem for his pupil, Moe Nishinosono, to solve. She solves both locked room-tricks nearly as quickly as her mentor, but the methods in this case do not reveal the killer. This is where Jack the Poetical Private begins losing some of its urgency and the plot stalls just a little.
Moe is left alone to poke and probe the university murders on her own when Saikawa goes abroad on a business trip, but she ends up reflecting on their relationship, "she began to feel that Assistant Professor Saikawa was far farther away than China," concluding that "murder cases no longer mattered to her at all" – until she made a questionable discovery. Minoru Yuki is an eternal student at N University whose musical career has over taken his academic education. Moe sees parallels between the lyrics of his song "Jack the Poetical Private" and double murder case. However, the lyrics supposedly alluding to the murders is the dodgiest part of the plot, because the lyrics are vague enough you can read anything in it. Like astrology or a palmist's prediction. Even worse, you have to take a very literal interpretation and ignore the overall context of the song to conclude that "the lyrics are full of expressions that hinted at those murders." You can pick and choose phrases ("...in exchange for everything in this room...") and say they allude to the tragedy from The Perfect Insider. Poor logic and reasoning, especially coming from Saikawa's pupil.
Where the story, and plot, begins to pick up again is with the third locked room mystery and a fourth murder. This third locked room interestingly takes place around the anechoic chamber and the nearby materials testing room at N University, which is all I can say without treading into spoiler territory. However, this third locked room demonstrates more complexity and imagination than the first two. More importantly, it's this third locked room and fourth murder finally giving the reader an opportunity to begin acting as an armchair detective. Just not based on the clues or the previous murders and incidents, but simply based on knowledge of detective stories and plots. For example, how is the reader supposed to have known (SPOILER/ROT13) Puvxn Fhtvgb obhtug gur fubrf Zbr unq orra rlrvat ng gur syrn znexrg? Not an unimportant detail as Saikawa points out the murders would have remained unsolved had that not happened. So the third and fourth murder is what made me suspicious of the murderer (ROT13: nsgre nyy, hfvat n frevrf bs zheqre gb pnzbhsyntr gur erny zheqre, be zheqref, vf abg rknpgyl n eribyhgvbanel vqrn gbqnl be va gur yngr avargvrf). After this, the story loses some of its urgency again until Saikawa returns to solve the case with a solution that sometimes feels more like imaginative leaps than a logical chain of deductions. That can be blamed on how disjointed the plot comes across in the home stretch.
First of all, I think the best and strongest aspect are the locked rooms. Not for their solutions/tricks, which are all of the technical variety, but why the murders were turned into full-fledged, bizarre locked room slayings that could have featured in a Danro Kamosaki novel – because it really looked like the killer was brute forcing them into existence. So liked the general idea of why a murderer would create a series of risky locked room situations with the third being the best. Purely as a locked room mystery, Jack the Poetical Private has something of interest to offer. The problem is that the solution revealed how disjointed and loose the overall plot is. MORI Hiroshi had a plan and even a blueprint Jack the Poetical Private with all the parts of the plot laid out on the floor, but didn't assemble and screw the whole thing together. And the vagueness of the motive didn't exactly help to tighten those loosely fitting joints.
So you can see how Jack the Poetical Private could have been a better detective novel had the plot been treated with the same rigor as the previous novels. It has still has its strong points as well as a few interesting ideas and discussions. There's a brief discussion early on in which Saikawa gives his take on the locked room problem ("...creating a room that’s completely unaffected by external factors is probably impossible"). But as a whole, Jack the Poetical Private is a marked step down from The Perfect Insider, Doctors in the Isolated Room and Mathematical Goodbye. Only recommended to fans of the S&M series, Japanese mysteries and impossible crime fanatics like myself.
By the way, as of this writing, the BBB has not began the serialization or even announced the translation of the next S&M novel, Fuin saido (Who Inside, 1997), which is supposedly an important entry in the series. This delay probably has to do with last years problem when "all of The BBB's works disappeared from eBook stores for several months due to a problem at the stores." So hope they'll get back on track soon and continue the series, even if this last one fell short of the mark. I really hope they have plans to translate one of Ryusui Seiryoin's own detective novels.











