Case Closed Novel
Case Closed Novel by Gosho Aoyama, known originally as Detective Conan, follows Shinichi Kudo after a criminal organization shrinks his body and forces him to continue solving mysteries under the name Conan Edogawa.
Summary of Case Closed Novel
Case Closed Novel begins with one of manga’s most memorable detective premises. Shinichi Kudo is a brilliant high school sleuth whose curiosity brings him too close to the Black Organization. Instead of dying from their experimental poison, his body shrinks into that of a child, forcing him to hide in plain sight as Conan Edogawa.
The story’s pleasure comes from the double mystery. Each case offers clues, suspects, timing, motives, and clever deductions, while the larger danger remains unresolved: Conan must discover the truth about the organization that changed his life. Living with Ran Mori and Kogoro Mori gives him access to investigations, but also deepens the pain of keeping his identity secret from the people he loves.
It is an excellent choice for readers who enjoy classic mystery structure mixed with manga energy. Case Closed Novel delivers puzzles, danger, humor, gadgets, friendship, and long-term suspense, all centered on a detective whose mind remains sharp even when the world sees only a child.
Characters in Case Closed Novel
Conan Edogawa / Shinichi Kudo: A teenage detective trapped in a child’s body, solving cases while searching for the organization that poisoned him.
Ran Mori: Shinichi’s childhood friend, loyal and brave, whose closeness makes Conan’s secret identity emotionally painful.
Kogoro Mori: Ran’s father and a private detective, often becoming the public face of Conan’s hidden deductions.
Dr. Agasa: An inventor and trusted ally who gives Conan tools that help him continue investigating despite his small body.
Ai Haibara: A former Black Organization scientist with a dangerous past and crucial knowledge of the poison that changed Conan.
The Black Organization: The secret criminal group behind Shinichi’s transformation and the series’ long-running central threat.

