The Decagon House Murders Series

The thrilling second volume of the manga based on the bestselling The Decagon House Murders locked room murder mystery by Yukito Ayatsuji.

A manga adaptation of the celebrated Bizarre House Mysteries series, perfect for fans of Uketsu’s Strange Pictures and Strange Houses!

A classic in Japan, now available in English for the first time!

Ayatsuji’s enthralling puzzle mystery continues in this brilliant next installment of the K University Mystery Club’s investigation into the grizzly, unsolved mass murder at the eerie 10-sided house on Tsunojima island.

When the first club member turns up dead, the remaining amateur sleuths realise they will need all of their murder-mystery expertise if they are to leave the island alive. As the party are picked off one by one, the survivors grow desperate and paranoid, turning on each other. Can they trust the facts of the case, and more importantly, can they trust each other?

Meanwhile on the mainland, the brilliant detective Kiyoshi Shimada is getting closer to the secret of the island after receiving a series of mysterious letters. Will he be able to untangle the murderer’s fiendish plan before it’s too late? 

Brought to life through Hiro Kiyohara’s stunning illustrations, this is the second installment in a 5-volume manga series set to grip fans of Japanese crime and thrilling horror-mystery manga series like Case Closed and Bungo Stray Dogs! They are the perfect gift for both longtime Ayatsuji fans and new readers looking for an ingeniously twisty, locked room mystery that encourages them to make their own deductions.

Japan’s most famous mystery series comes to life with dynamic black-and-white illustrations in this manga adaptation of Yukito Ayatsuji’s first Bizarre House Mystery—perfect for fans of Utesku’s Strange Pictures!

A landmark puzzle mystery waiting to be solved. Ayatsuji’s bestselling Japanese crime novel is transformed into a gripping manga edition through Hiro Kiyohara’s stunning illustrations.

The lonely, rockbound island of Tsunojima is notorious as the site of a series of bloody unsolved murders. Some even say it’s haunted. One thing’s for sure: it’s the perfect destination for the K-University Mystery Club’s annual trip. Armed with details of the murder and keys to the property, they set out to dig deeper. The bizarre house they find themselves in has 10 rooms arranged in the shape of a perfect decagon. But they are walking into a trap, one consisting of 10 equal sides and interior angles. And they will be sentenced.

This is the first in a 5-volume manga series set to grip fans of Japanese crime and thrilling horror-mystery manga series like Case Closed and Bungo Stray Dogs! Now available for the first time in print in English, these editions feature elegant black-and-white illustrations that bring the brilliant detective Shimada Kiyoshi and other characters vividly to life like never before. They are the perfect gift for both longtime Ayatsuji fans and new readers looking for an ingeniously twisty, locked room mystery that encourages them to make their own deductions.