Last
year, Kie Houjou became one of my favorite mystery writers on the
strength of two novels, Jikuu
ryokousha no sunadokei (The Time Traveler's Hourglass,
2019) and Meitantei
ni kanbi naru shi wo (Delicious Death for Detectives,
2022), which are respectively the first and third title in the "Ryuuzen Clan" series – translated by Mitsuda
Madoy and "cosmiicnana." Technically, they're hybrid
mysteries. The Time Traveler's Hourglass weaves time
travel into an intricate, immaculately-plotted detective novel and
Delicious Death for Detectives entrenched its plot in an
immerse, futuristic Virtual Reality game. However, they're so very
well done, well rounded and incredibly innovative mysteries, it would
be more accurate to call them the detective series of tomorrow. I
especially can see Delicious Death for Detectives becoming the
classic detective novel from the first-half of this century (i.e.
comparable to Agatha
Christie's And Then There Were None, 1939).

I
had a sneaking suspicion the second book in the series, Katou
no raihousha (Visitors to the Isolated Island,
2020), could become my favorite. A suspicion that proved to be not
far off the mark!Kie
Houjou's Visitors to the Isolated Island is the second title
in the "Ryuuzen Clan" series, but Meister Hora only appears in
the foreword to assure the reader that although "the events of
the story seem absurd, there is no need for you to fear" as it
will remain a detective story at heart ("I value fair play above
all else"). Kamo Touma is only mentioned as the author of an
article on the titular island in the Unsolved Mysteries
magazine. Instead, the story focuses on Kamo's brother-in-law,
Ryuuzen Yuki, who's the Assistant Director at J. Production en
route to the lush, now uninhabited Kakuriyo Island to shoot a TV
special for the World's Mysteries Detective Club show –
which is going to spotlight the 1974 "Beast of Kakuriyo Island"
incident. A mass murder robbing the island of the last of its last
inhabitants.
Kakuriyo
Island, "a perpetual summer paradise," actually consists
two islands. A bigger, oval shaped island and a smaller tidal island,
known as the Divine Land, which is connected to the main island
during low tide when a gravel path appears. In 1974, the entire
population (12), in addition to a visiting professor researching
folklore, was wiped out in a single night with bodies found in
different locations. All the victims had one thing in common: they
had been stabbed in the heart by "a cone-shaped object."
The police concluded the visiting scholar, Professor Sasakura, killed
the islanders when caught digging up the cemetery looking for buried
treasure. And died himself in a struggle with the last victim.
Furthermore, the police believe the dogs kept on the island were
responsible for savaging Professor Saskura's body. A conclusion that
doesn't satisfy or hold up, as outlined in Kamo's article, but that's
where the case stood for nearly half a century.
Fast
forward to 2019, Yuki has come to Kakuriyo Island not only as the
assistant director, but to get revenge for a friend whose death can
be blamed on certain members of the production company.
However,
Yuki plans to break with long-standing (shin) honkaku
traditions by opting for practical methods rather than "crimes
patterned on old legends or nursery rhymes and serial killings in
villas," because locked room murders, fabricated alibis and
other fictional crimes "were often useless in real life" –
preferring to arouse as little suspicion and panic as possible. Only
the appearance of a great detective, which is why invited a
well-known researcher of subtropical ecosystems and detective fiction
enthusiast, Motegi Shinji, to "reveal a false truth prepared by
Yuki." So imagine his annoyance when one of his prospective
victims is impossibly killed in a way mirroring the 1974 murders.
Unno Nisaburo, the director, is found stabbed through the heart on
top of a bush with only his muddy footprints leading to the spot.
So
the plot, up till this point, still sounds fairly conventional shin
honkaku mystery with the customary closed circle of characters
stuck on an isolated island when a murderer begins leaving bodies in
bizarre or impossible circumstances. It could describe the plot of
Yukito Ayatsuji's Jukkakukan
no satsujin (The Decagon House Murders, 1987), MORI
Hiroshi's Subete
ga F ni naru (The Perfect Insider, 1996), NisiOisiN's
Zaregoto
series: kubikiri saikuru (Zaregoto, Book 1: The Kubikiri
Cycle, 2002) or half the titles from The
Kindaichi Case Files series. Not to forget Danro Kamosaki's
recently reviewed Misshitsu
kyouran jidai no satsujin – Zekkai no katou to nanatsu no trick
(The Solitary Island in the Distant Sea and the Seven Tricks,
2022). Where Visitors to the Isolated Island begins to differ
is when Yuki proves Sherlock Holmes' adage, "when you have
eliminated all which is impossible, then whatever remains, however
improbable, must be the truth," correct. Yuki deduces from the
circumstances in which the director was killed that "the
so-called Beast of Kakuriyo Island actually exists." A creature
not native to the island, our planet and perhaps not even from this
reality!

Yuki's
outlandish theory is quickly proven correct and places entirely new
complexion on both their situation and that of the detective story.
Now the problem is not trying to fit motive and opportunity to one of
the suspects, but applying the art of deduction to unraveling the
nature of the creature ("...so little information and so many
unknowns..."). Where did it come from? What can it do? What are
its limitations? How intelligent is it? How can they possibly protect
themselves from it? One thing that's obvious from the start is the
creature, called a Visitor, is halfway between a Chupacabra and a
Skinwalker. It sucks living creatures, preferably humans, dry like a
juice box. More disturbingly, it can take on the form of its victim
in addition to some other distinctly non-human traits and abilities,
but its “mimicry” poses a direct treat to the group. Visitor has
the ability to replace someone in the group and this danger even
extends to animals no smaller than a cat. So they not only have to
find answers and trying to draw conclusions from the gathered
information, but strategize in order to survive and prevent the
Visitor from escaping the island.
A
comparison can be drawn with the zombie hoard encircling the villa in
Masahiro Imamura's Shijinso
no satsujin (Death Among the Undead, 2017), but the
Visitor presents the Yuki and the reader with a genuine, ultimate
unknown – an intelligent, non-human interloper. An invasive species
knocking humanity down a place on the food chain. And with every new
discovery about the Visitor, it throws another complication on their
various problems while the bodycount and suspicion steadily rises. So
not exactly the same obstacle presented by the zombies from Death
Among the Undead, but towards the end, the traits and abilities
of the Visitors come into play when someone is bumped off while alone
in a watched room with a dog guarding the hallway. Solutions to this
impossible murder and Yuki's explanation twists and coils right up
until the final pages with some wonderful, highly imaginative
applications of the Visitor's abilities to the traditional, fair play
detective story.
How
fairly the game was played here is more impressive than how Kie
Houjou handled the ultimate unknown within the confines of the
traditional detective story. A good, non-spoilerish example is the
coded message the original inhabitants left behind revealing the
hiding place of a treasure trove of information on the Visitors. In
my experience, Japanese code cracking stories, or subplots, rarely
work in translation, but Yuki pointed out that "this code was
made to be solved by a complete outsider to the island" –
including the reader. Not only is the code 100% solvable, it's
solution is a clue in itself. Houjou played it so fairly, she
included two relatively short chapters from the perspective of the
Visitor. I was, in fact, able to anticipate an important part of the
solution without getting all the way. But it was fun trying to find
my way in what's new territory for the detective story.
That's
another noteworthy aspect of Visitors to the Isolated Island.
It demonstrates why hybrid mysteries have become the next frontier
for Japanese mystery writers. When done correctly, the hybrid mystery
allows to break new ground and create new possibilities, while
staying well within the framework of the classically-styled, fair
play detective story. Visitors to the Isolated Island is a
superb example of the fair play, hybrid mystery done right. Only
drawback is how unrealistically perfect, almost dreamlike, all three
novels are. Like a collective wish-fulfillment of detective fans come
true!
So
what else to say, except that The Time Traveler's Hourglass,
Visitors to the Isolated Island and Delicious Death for
Detectives deserve an official release in as many different
languages as possible, because these three detective novels are going
to be the classics of the 21st century. To quote Mitsuda Madoy, "they
phenomenal, absolute masterpieces" and "boringly perfect"
to boot. Highly recommended!
Note
for the curious: yes, I know, I rambled on long enough, but
something else I liked is how Visitors to the Isolated Island,
an experimental hybrid mystery, embodies the past, present and future
of the genre. Edgar Allan Poe's "The Murders in the Rue Morgue"
(1841) was not only the first modern detective story and first
official locked room mystery, but also the first hybrid mystery
combining horror with a tale of ratiocination. A line can be drawn
from Poe to this book and the direction the genre (in Japan) seems to
be headed in the years ahead.