The Ark (2022) by Haruo Yuki

When compiling and cobbling together "The Hit List: Top 10 Favorite Hybrid Mysteries," I mulled over including a disaster-themed detective novel, but was not entirely sure whether disaster detectives counted as hybrid mysteries or not – decided not to include one. It only dilutes the concept if every detective story in which a mine explodes or a submarine is sunk with survivors aboard. Not to mention the knock-on effect of wartime novels suddenly qualifying as hybrid mysteries.

However, there are disaster detectives, rare as they are, in which the disaster is central to the story rushing along the plot. I suppose Ellery Queen's The Siamese Twin Mystery (1933) is a good, early example of the disaster detective hybrid and it's impossible to ignore Nevada Barr's Firestorm (1996). So this issue needed further probing and why I looked forward to two translations Pushkin Vertigo announced last year as forthcoming.

Akane Araki's Konoyo no hate no satsujin (Murder at the End of the World, 2022) takes place during humanity's last three months as a civilization ending meteor hurls towards our planet, which should be out around late July or early August. Haruo Yuki's Hakobune (The Ark, 2022), translated by Jim Rion, had been out for a few months now and merges the classically-styled, closed circle whodunit with a survival thriller – arrival of my copy coincided with an interesting review. Countdown John reviewed Yuki's The Ark right after it was published and observed, "I think this qualifies as a hybrid mystery, in this case a cross between a classic mystery and a disaster movie." Agreed! The Ark is exactly the kind of disaster detective/thriller that works as a hybrid mystery, but let's start at the beginning.

The Ark begins when a group of former students and members of their university's hiking club reunite two years after graduating. Firstly, there's Shuichi Koshino, a system engineer, who narrates the story. Shuichi brought along his smartly dressed cousin, Shotaro, who's going to be Ellery Queen-like detective and not the infallible version. Other friends from the old hiking club are Sayaka Nouchi, a yoga teacher, Hana Takatsu, an office worker, Yuya Nishimura, vaguely doing something with fashion, Ryuhei and Mai Itoyama. They got married shortly after graduating. Yuya has hiked in the area before and had discovered an underground building in the mountains. A three floor, subterranean steel structure into a huge cavern with the whole structure following "the shape of a naturally occurring cave" giving it the form of an ark ("...like in the Old Testament?"). The place has a murky past possibly involving militant groups, cults and criminals. Yuya suggests they go explore The Ark, but has trouble finding the entrance to the tunnel. So it quite late when they finally find the entrance and bump into a family of three, the Yazakis, who were out hunting mushrooms when they got lost. They have to camp for the night inside The Ark.

During the night, the mountain is rocked by an earthquake that set the barricade boulder rolling and blocking the exit. The earthquake also caused the trickle of water that had already claimed the bottom floor to increase. So they were trapped for the time being, because there's a way out that comes with a huge moral dilemma: the boulder can be moved, but it would trap the person working the winch to be trapped alone inside a small, cavern-like room – no guarantee the rest can return in time with help. Who has to be sacrificed? Before they can even think about it, one of them is found strangled to death in a storeroom! So now they not only have to deal with being trapped, while the water is slowly rising, but one of them unquestionably being a murderer. Even more baffling is why commit murder under these dire circumstances, especially after finding out they need a sacrifice to escape?

What they need to do is find the killer and force that person to make the sacrifice, because they're going to be hanged for murder anyway. Fortunately, the Ark has a working generator with a weeks worth of fuel giving them some time to find the murderer and that's my sole gripe with The Ark. A detective story can be too much driven by coincidence, but The Ark is the only detective story driven entirely by convenience. The situation inside the Ark would have played out completely different had their been no lights or a way to keep their smartphones charges. Not to mention the left over supplies and tools scattered across the numerous room or the old, outdated, but still working security camera system guarding the blocked entrance and exit. However, convenient as the situation may for the purpose of the plot, Haruo Yuki used those plot conveniences to their full potential to tell this story.

So with about a week until fuel runs out and the water reaches them, Shuichi and Shotaro set out to find the murderer, but the first murder is just a plain murder. The storeroom "had not been locked from the inside, no article of clothing was missing for unexplained reasons, nothing in the room had been inexplicably turned upside down" and "no dying message." Only the baffling question why the murderer picked this moment to strike. While the first murder was "almost disappointingly free of puzzles," the second murder is a typical, gruesome shin honkaku slaying. Every action to killer took to be "simply mystifying." Why stab and decapitate a corpse? What happened to the head? Why dispose of the victim's belonging? And why kill when being trapped underground? Merely a few of the puzzling questions surrounding this second and third, arguably even stranger murder.

Haruo Yuki delivered some devilish clever answers to those questions, like why cut off the head of the second victim, but even better is the role the character's smartphones played though out their ordeal. I mentioned in the past how much I dislike the claim how advances in forensic science and technology in generally had made the traditionally-plotted, Golden Age-style detective novel obsolete. An argument Isaac Asimov demolished in the granddaddy of hybrid mysteries, The Caves of Steel (1953/54), but The Ark provides several practical and ingenious examples for our time. If you ever wondered what the greats from the Golden Age could have done with today's technology, The Ark should give you a pretty good idea. Where the plot and story excels is when the time has come to put everything together as Shotaro reveals the murder through an Ellery Queen-style chain of reasoning and deductions by going over identifiable action and step the killer took from the first to third murder. But then it's time to get out.

Anyone somewhat familiar with Japanese authors penchant for dark, bleak endings and tragic twists can feel something coming in the epilogue. I expected something normal and mundane. Something like the survivors emerging from the Ark to discover the earthquakes were caused by an apocalyptic event like a nuclear war or an asteroid strike, but I didn't see that twist coming. A cruel, beautiful twist making for an unforgettable ending. Even more impressive, the revelation in the epilogue serves as the finishing touch of perfection as it revealed the crimes to have been truly unique to that place and harrowing week inside the Ark. There was no other time or place where the motive for these murder could have arising except among that group of people trapped inside. So, yes, I enjoyed this one very much.

Haruo Yuki's The Ark is simply a plot-technical marvel of the 21st century detective novel with a time-honored approach to the age-old question of whodunit? Highly recommended!

I plan to do "The Hit List: Top 10 Favorite Translations from Pushkin Vertigo" sometime in the future, but picking just ten is, fittingly enough, going to be a bloodbath.