Don't you just get excited when you open a mystery novel and you discover there are floorplans or other diagrams inside? There's just something romantic about a visual depiction of the setting of a story. In some stories, having a clearly drawn map might be necessary in order for you to solve the mystery, while in other stories, the map is merely there to assist the text, just to make things a bit more clear and perhaps to add a bit of flavor. And as I've also mentioned in my reviews of novels like Kokushikan Satsujin Jiken and Murder Among the Angells, settings like houses, mansions or castles can also act as a character on their own in mystery stories, and floorplans really help giving life to these sinister settings.
For this short post, I wanted to show a couple of floorplans that made an impression on me. I won't be talking about them too much, as in some cases one can even figure out something important by looking at these diagrams if you know what to look for, but I think that no matter what, these floorplans just look impressive.
Ayatsuji Yukito - Meirokan no Satsujin ("The Labyrinth House Murders", 1988)
The title basically says it all. After his debut novel The Decagon House Murders, Ayatsuji continued with this series featuring the creations of the architect Nakamura Seiji and this third novel features an underground 'house' designed after the Labyrinth of the Minotaur, and the building is absolutely insane.
Shimada Souji - Naname Yashiki no Hanzai ("The Crime at the Slanted Mansion", 1982)
The second novel in Shimada's Mitarai Kiyoshi series has an interesting diagram, as it's drawn with depth. Floorplans with perspective aren't really common actually, and I really like how this house looks with the tower.
Nakai Hideo - Kyomu he no Kumotsu ("Offerings to Nothingness", 1964)
These floorplans are a bit smaller in scale compared to the previous ones, but I love the hand-drawn feeling of these plans. Kyomu he no Kumotsu is an infamous anti-mystery novel where the protagonist detectives try to figure out how a murder was committed even though there's no proof it's a murder and they just want it to be a murder because it's more fun and they hope more murders happen. These plans of course help them with their deductions.
Ayatsuji Yukito - Kirigoetei Satsujin Jiken ("The Kirigoe Mansion Murder Case", 1990)
Another novel by Ayatsuji. Technically, Kirigoetei Satsujin Jiken isn't part of Ayatsuji's House series, though the connection is heavily hinted at and the floorplan certainly seems similar in its complexity. This one is remarkable because of its sheer size, and this is just the ground floor!
Nikaidou Reito - Jinroujou no Kyoufu - France (" La Terreur Château du Loup-garou La Second Partie: France, 1997)
Jinroujou no Kyoufu is a mammoth of an impossible crime mystery, consisting of four volumes of 600~800 pages each. These 8(!) floorplans are of the Blue Wolf Castle, which lies in France. A serises of horrible murders and other gruesome crimes happen in this gigantic castle, but what makes this a true terrifying experience is that this just half of the mystery: the Blue Wolf Castle is just one half of a set of twin castles, and another series of murders happen in the Silver Wolf Castle, just across the border in Germany. The Silver Wolf Castle has the exact same layout as the Blue Wolf Castle, but the happenings that occur in these two castles is just amazing, and one can sense the scale of this story just by looking at these castle plans.
Chisun Inn
Oh, wait, this isn't from a mystery novel. This is in fact a floorplan of the Chisun Inn, a hotel located in Nagoya, Japan. Which also happens to look exactly like something from a mystery story. The hotel is designed in a spiral form, with a lot of rooms in a fan form, but one can easily imagine this to be the setting of a series of murders, right? I for one would make sure my door was locked and double locked if I were to stay here, as there's bound to be someone who's planning some kind of ingenious alibi trick or an impossible murder!
Anyway, these were a few floorplans from mystery novels that made an impression on me because of how they were designed, the scale of the setting or simply how they were drawn. Feel free to leave a comment with the floorplans from mystery novels (or TV series/manga/games) that made an impression on you.