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ケルベロスの暗号は多重解読が可能だった！ その結果、浮かび上がった『冥王星』のスパイ容疑者３名――本郷、片桐、真木を、Ｑクラスが追跡!! スパイの正体は、誰!? 一方、リュウの失われた過去を埋める新たな“かけら”が明らかに！ それは、かつてメグが通っていた国立能力開発研究所。意外な接点を探れ!!
192 pages, Kindle Edition
First published December 17, 2004
26 people want to read
About the author
Seimaru Amagi
265 books30 followersNative: 天樹征丸
Real Name: Shin Kibayashi
Pseudonym of Tadashi Agi, Yuya Aoki, Yuma Ando, Joji Arimori, Hiroaki Igano, Ryo Ryumon
Blood Type: O
亜樹 直 Agi Tadashi is a Japanese manga storywriter, novelist and screenwriter. His original name is Shin Kibayashi (樹林 伸 Kibayashi Shin). He was born in 1962 in Tokyo, and graduated from Tokyo Metropolitan Musashi Senior High School and Waseda University School of Economics & Political Science. The penname "Tadashi Agi" is shared with his sister. Under the name Yuma Ando, he received the 2003 Kodansha Manga Award for shōnen for writing Kunimitsu no Matsuri.
Real Name: Shin Kibayashi
Pseudonym of Tadashi Agi, Yuya Aoki, Yuma Ando, Joji Arimori, Hiroaki Igano, Ryo Ryumon
Blood Type: O
亜樹 直 Agi Tadashi is a Japanese manga storywriter, novelist and screenwriter. His original name is Shin Kibayashi (樹林 伸 Kibayashi Shin). He was born in 1962 in Tokyo, and graduated from Tokyo Metropolitan Musashi Senior High School and Waseda University School of Economics & Political Science. The penname "Tadashi Agi" is shared with his sister. Under the name Yuma Ando, he received the 2003 Kodansha Manga Award for shōnen for writing Kunimitsu no Matsuri.
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Displaying 1 - 4 of 4 reviews
June 28, 2018
Kecurigaan makin menjadi-jadi. Dan ternyata mata-mata di DDS itu...
May 10, 2020
Pretty great closed door mystery manga, reminds me of Sherlock Holmes! Really great exciting story😁😻🧐🕵️♀️🕵️♂️❤️
March 1, 2023
The individual cases were quite nice, but the rest of the book felt like a balloon…
April 8, 2025
THE SPY AMONG US: CERBERUS CIPHER AND THE TRIPLE SUSPECT
A cryptic puzzle given by Cerberus before his escape sends Class Q into a race against time to unmask a hidden enemy in their midst. As they decode its layered meanings, suspicion falls on three possible staff—Hongo, Katagiri, and Maki. Each clue deepens the mystery, and the line between ally and adversary begins to blur. With Pluto’s shadow looming ever closer, Class Q must uncover the infiltrator before their next move turns deadly.
DREAMS, POWERS, AND A FORGOTTEN PAST
As Ryuu delves deeper into the secrets of his hidden past, he finds himself drawn to the enigmatic National Institute for Advanced Human Development—a place with ties to Megumi's past. When a current student visits Megumi, claiming to have dreamt of a coming disaster, memories resurface of an eerily accurate dream she once had before a tragic accident. While Kyuu remains skeptical of anything psychic, Ryuu reveals a past encounter with a boy who wielded psychokinetic powers in America. The team sets out to investigate the institute—unaware that Pluto has laid yet another trap in the shadows.
A cryptic puzzle given by Cerberus before his escape sends Class Q into a race against time to unmask a hidden enemy in their midst. As they decode its layered meanings, suspicion falls on three possible staff—Hongo, Katagiri, and Maki. Each clue deepens the mystery, and the line between ally and adversary begins to blur. With Pluto’s shadow looming ever closer, Class Q must uncover the infiltrator before their next move turns deadly.
DREAMS, POWERS, AND A FORGOTTEN PAST
As Ryuu delves deeper into the secrets of his hidden past, he finds himself drawn to the enigmatic National Institute for Advanced Human Development—a place with ties to Megumi's past. When a current student visits Megumi, claiming to have dreamt of a coming disaster, memories resurface of an eerily accurate dream she once had before a tragic accident. While Kyuu remains skeptical of anything psychic, Ryuu reveals a past encounter with a boy who wielded psychokinetic powers in America. The team sets out to investigate the institute—unaware that Pluto has laid yet another trap in the shadows.
Displaying 1 - 4 of 4 reviews