How Watson Learned the Trick

"I'm lost without my Boswell."

"A Scandal in Bohemia"

Not sure if anyone reads the page, but I added Turn of the Golden Witch to the Umineko no Naku koro ni playthrough memo.

I love short story collections, but it always takes so much time to write the review...

Ooyama Seiichirou has been churning out incredibly well-written puzzle plot short stories since his debut, so obviously, any news of a new short story collection immediately attracts my attention, even without me knowing what it's about. Though in this case, the premise also sounded so much fun I knew I had to read it. Wato Souji is a rookie police detective assigned to the top investigation unit of the Metropolitan Police Department, which sports an unbelievable rate of solved cases. Unlike his colleagues however, Wato himself is not exceptionally good at his job. Yet, it is absolutely thanks to Wato that his unit does so well, even if his team members don't realize that. Ever since Wato was a little, he has had a weird gift: people in his physical vicinity become better thinkers when faced with a mental problem. When Wato's around, it's as if the mist suddenly disperses and any person becomes capable of infering the possibility of an Atlantic or a Niagara without having seen or heard of one or the other, from just a drop of water. Wato has dubbed his unique talent the "Watson Force" as everyone around him unconsciously turns into Sherlock Holmes. Nobody knows that Wato is making people around him smarter, but his colleagues do notice things go more smoothly whenever Wato's around, so they like having him on the team. While Wato himself is not affected by his power and thus can not become a Holmes himself, he does have a trait only series detectives have: he tends to get involved in random murder cases even outside work. Luckily, the cases are always solved for him by everyone around him. But what if Wato finds himself in trouble without anyone around? Ooyama Seiichirou's  2020 short story collection Watson-ryoku  ("The Watson Force") explores Wato's ability in seven (+one) diverse stories.

In game-lingo: Wato's Watson Force is a passive ability that greatly buffs the intelligence stats of all friendly and enemy units around him.

The first time I heard of the premise of these stories, I just knew I had to read them, because the concept was just so funny. An ability that makes everyone else brilliant detectives, while the series protagonist is destined to play the Watson in each and every story? What's so interesting about these stories that you never know who in the end will end up as the detective. Everyone in the vicinity of Wato receives the temporary mental boost, but that doesn't mean that all the characters arrive at the same conclusion at the same time. Everyone is just getting a mental boost, so they all start forming theories about the murder cases they find themselves involved with, and as these characters present their theories to each other in fierce deduction battles, they slowly work together towards the true solution. All the characters always have something to add in terms of interesting theories (okay, some theories are less likely to be true than others), and the fun in these stories is seeing everyone bouncing off theories until one of them finally figures the whole thing out. But as there's no established series detective, you simply never know who will get it right. I once wrote an article about false solutions and the foil detective, but Watson-ryoku presents a brilliant method to prevent the reader from knowing a solution is fake simply because it wasn't the series detective who proposed it: by not having a series detective in the first place, and creating the possibility that every character besides Wato can be the Sherlock Holmes, you just never know what might come, which keeps the battle of wits and the whole plot exciting until the very end.

Take the opening story Akai Juujika ("The Red Crosses") for example. Wato is enjoying his Christmas holiday at a small ski pension, which has three other guests. On Christmas morning, the guests find that the owner of the pension hasn't prepared breakfast yet, nor is there any sign of the owner's sister, who also works here. The guests check the private rooms of the owner, only to find that brother and sister have been shot to death in their respective rooms. The owner however managed to leave a dying message while he was bleeding to death on the floor: five red crosses are drawn in blood in front of him. Wato reveals to the other guests that he's a police detective and notifies the local authorities, but they aren't able to come due to a blocked road and when Wato also discovers that there are no footprints in the snow whatsoever leading away from the lodge, he determines the murderer must be one of the other guests. At this point, his Watson Force kicks in, and lo, the other guests start their own investigation into the murder, arriving at a surprising answer to the question as to the meaning of the red crosses and the identity of the murderer. The story keeps both the characters and the reader on their toes by having the three guests all become brilliant detectives in their own right, allowing each of them to propose rather interesting theories about the double murder. Some of these deductions are sometimes a bit forceful: they usually turn out to be wrong, but do serve as a point for other deductions to build upon as elements turn out to be true. Having some of these "Holmeses" propose slightly farfetched theories that ultimately do help introduce the final solution works in the context of this series, as all the characters are capable of coming up with fairly original insights into the case. I like the final solution too: it's in the spirit of the Van Dine/Queen school, with a chain of reasoning based on the physical state of the crime scene ("why is this here in this form?"), giving a plausible reason why five crosses were drawn on the carpet and showing you step by step how to arrive at the identity of the murderer from there.

In Ankokushitsu no Satsujin ("The Murder in the Dark Room"), Wato has been given a ticket to the exposition of a famous sculptor. The exposition is held in one of the underground floors of a multi-tenant building. It's still early, so besides Wato, the sculptor himself and the receptionist, there are only two other visitors, but suddenly they all feel a rumble and all the lights in the room go out. It turns out a sink hole has appeared just outside and that broke the sewage pipes. Not only is the elevator disabled, water has also flooded the emergency staircase, preventing the party from opening the escape door to escape through there. Fortunately, rescue is on its way. It's still completely dark in the room as the people introduce each other using their cell phones as light source, but suddenly, they hear another thud, and they find that the sculptor himself lying dead on the floor, having been hit on the head. But why would someone decide to kill the man here and now, while they're all trapped in an unlit room and with no means of escape? Some of the theories proposed do feel like they come out of nowhere, and it's still weird when they turn out to be partially true, as a build-up for the actual solution despite being such daring deductions (guesses), but I do like the idea behind the reason for why the sculptor died: the motive relates to a very specific set of circumstances that happen to be true here and gives plausible reason for why the culprit acted so suddenly.

Kyuukonsha to Dokusatsusha ("Suitors and Poisoners") has Wato be summoned to a remote private island as a potential husband for Sasamori Tsukiko, the daughter of Sasamori Shunsuke, CEO of the renowned and influential Sasamori Electronics. Sasamori once spotted Wato being a kind person to the elderly and determined he was a good candidate as a son-in-law. Sasamori is also a personal friend of the Superintendent-General of the Metropolitan Police Department, who hopes his subordinate will be chosen by Tsukiko. Three other suitors are also summoned to the private island and the idea is that Tsukiko will spend some time with everyone there and make up her mind. The other three suitors are all in career fast tracks at various ministeries and they immediately realize that Wato isn't not a serious rival for any of them, which ironically means they can be friendly with him. The party has just arrived on the island and started on some drinking and dancing when one of the suitors falls dead on the floor: his drink had been poisoned. The trope of multiple suitors fighting for the same girl and one of them being murdered is a familiar one of course, but now the remaining suitors don't just fight it out, but actually use logic and theories to fight each other and figure out who the murderer is. It's a surprisingly complex story, with various theories that focus on questions on when the drink was poisoned and whether the victim was actually the intended target and not (and how to prove that logically). As always, you never quite know who's on the right track until the very end. This story makes very clever use of the concept of the Watson Force, showing how it can be used in a very original way to drive the plot and create a mystery that actually revolves around having all the characters come up with various solutions from different angles.

Yuki no Hi no Majutsu ("Snow Day Magic") is set during Wato's time as a patrol officer. One early morning, he notices a car parked near the construction site of a new house. He decides to check this out, and walks up to the house, when Miyagi, the owner of the halfway house, comes running out. Upon seeing Wato, Miyagi tells him he found a dead body inside. The victim was lying face down on the foundation of the semi-basement floor. The man's been shot to death just moments earlier. There are no footprints in the snow surrounding the site that could belong to the murderer, only those of the victim himself and those of Miyagi, but these footprints show that Miyagi had only just arrived at the house and as he wasn't carrying the pistol on his body when Wato ran into him, Wato determines Miyagi couldn't be the killer. What complicates matters however is the fact that the victim and Miyagi are both members of the same shooting club, and they were rivals in being picked for the Olympics. A deduction battle sparked by the Watson Force starts upon arrival of the victim's family, who are convinced that Miyagi did it. A story which reminds me of Ooyama's The Locked Room Collector, as this too is an impossible murder that is ultimately solved through Queen school logic. It's a story that could've worked as "just" an impossible murder story, without the various characters trying to outsmart each other with their theories, but it's just more entertaining this way, as you see how Ooyama slowly builds towards the final solution, which is a nice one: the method of the murder is interesting on its own, but what's most commendable is how Ooyama arrives at this method through a logical examination of the circumstances of the murder, making it not just a random guess, but a carefully built-up chain of logic leading to the realization of how the impossible murder was done.

Kumo no Ue no Shi ("Death Above the Clouds") is obviously set inside a plane, one that is going from Japan to Los Angeles. It's not a busy flight, so Wato has the three window-side seats for himself, as does the man in the row behind him. Soon after the 'lights out'' time however, the cabin assistant notices that all's not well with the man behind Wato and after calling for a doctor aboard, it's determined the man is dead and that he was likely poisoned on board. Wato reveals himself to the crew and sky marshal as a police detective and they start investigating the murder on the Japanese-American, focusing on the question why the man died on board: was it a suicide or a murder, and why during a flight? Some of the theories proposed are a bit too farfetched this time, but they are needed to set-up the final solution and I guess they work in this particular series because anyone can be as brilliant as Holmes, even if they're going in the wrong general direction. The explanations proposed by the various characters keep the reader engaged as they tackle the problem from different angles, and I like how the final solution builds clearly on an earlier idea that had been discarded first, but which becomes "valid" again due to the introduction of a new fact, changing the circumstances again.

Tantei Daihon ("Detective Script") is one have discussed in the past already, as it was included in the anthology Honkaku Ou 2019. It's written as a homage to Abiko Takemaru's Tantei Eiga and follows the same basic idea, about a playwright who barely survived a fire in his home. What also barely survived the fire is the script of his troupe's upcoming murder mystery play. The partially burned scenario only offers the start of a murder mystery that happens on a remote island, but not the solution. The actors start discussing the script and guessing who the playwright intended to be the murderer in the presence of Wato (who saved the playwright from the fire). As the discussion continues, each actor comes up with a solution that indicates their own character as the murderer. I'll just copy-paste my own words here from the previous review: "Tantei Daihon is still a surprisingly tightly-plotted story with several fake solutions. The final solution is clever: if you just follow the clues "straight", you're likely to run into a wall, but once you figure out the true meaning of a certain passage in the screenplay, everything is turned upside down, allowing you to arrive at the correct solution. I love this type of whodunnit setups, where you can cross out most of the suspects if you simply carefully follow each clue, but there's one final clue that asks for a bit more imagination in interpretation, which can turn everything around. Short, but satsifying."

The culprit isn't the only one who's unlucky in Fuun na Hannin ("The Unlucky Perpetrator"): Wato's on a late highway bus heading for Toba when the bus is suddenly hijacked by an armed man, who's just has had enough of everything and forces the driver to change destination. When one of the passengers doesn't seem to listen to the hijacker's orders, they discover that this man has been stabbed to death with a knife. Wato can't do much about controlling his Watson Force even in an emergency situation, so the passengers and the hijacker start thinking about how this man was killed on the bus while the bus is headed towards its new destination. Interesting situation! It's funny how everyone starts playing Holmes right in the middle of a hostage situation and that even the hijacker plays along. This story does a great job at foreshadowing, placing Chekhov's Guns at the right place and time and finally bringing it all together for the final solution. The base plot of this story does remind of the previous story (murder inside a moving closed circle situation), but the solution is completely different and I like this one better as the various events that occur throughout the story really come together to form a cohesive plot.

While these stories were originally published seperately, the volume Watson-ryoku also includes a overarching storyline presented through special connecting segments that act as intermezzos between the various stories. The book starts with Wato waking up in a locked room. He remembers he was abducted by an unknown figure, and Wato suspects his capture is related to his Wato Force, so he starts reflecting on the previous cases that were solved through the Watson Force, introducing the seven stories discussed above. In the conclusion, it's revealed who captured Wato and for what reason, and it's perfectly possible to deduce who the abductor is based the few theories Wato himself proposes and the details of the previous stories. Interesting to see how these originally unconnected stories manage to form one narrative in the end.

Watson-ryoku definitely didn't disappoint, and the volume turned out to be a very entertaining short story collection, that not only has an interesting premise with the Watson Force, but makes the best of that original idea too: we have battles of the wits with all kinds of theories (false solutions) in all the stories, the reader is kept on their toes as you never quite know who will propose the final solution and while the basic plots of a few of these stories do feel a bit similar, with closed circle situations and relatively 'simple' murders like poisoning or just someone bludgeoned or stabbed to death, the core mystery plots always revolve around very different concepts. Recommended material, and man, I can't wait to see a live-action drama: usually the detective is the greatest star in a series, but now you can have an all-star cast in each episode and have everyone (besides Wato) play the great detective!

Original Japanese title(s): 大山誠一郎『ワトソン力』： 「赤い十字架 」/「 暗黒室の殺人」 / 「求婚者と毒殺者」/ 「雪の日の魔術」/「 雲の上の」 /「 探偵台本」 / 「不運な犯人」