Volume 21

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| ‹  [Volume 20](/wiki/Volume_20 "Volume 20") | [**List of Chapters**](/wiki/Manga#Chapters "Manga") • [**List of Cases**](/wiki/List_of_manga_cases#Detective_Conan_Case_List "List of manga cases") | [Volume 22](/wiki/Volume_22 "Volume 22")  › |
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| **Volume 21** | |
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| **Information** | |
| Release date: | October 17, 1998 |
| Chapters: | 201-211 |
| ISBN: | ISBN 4-09-125491-8 |
| Publisher: | [Shogakukan](/wiki/Shogakukan "Shogakukan") |
| English release date: | January 15, 2008 |
| English ISBN: | ISBN 1-4215-1456-7 |
| English Publisher: | [Viz Media](/wiki/Viz_Media "Viz Media") |
| **Featured Detective & Keyhole** | |
| |  |  | | --- | --- | | [Sam Spade](/wiki/index.php?title=Sam_Spade&action=edit&redlink=1 "Sam Spade (page does not exist)") | [Miwako Sato](/wiki/Miwako_Sato "Miwako Sato") | | |
| **Aoyama's death & Conan side images** | |
| |  |  | | --- | --- | |  |  | | |
Volume 21 was released on October 17, 1998 in Japan.
## Contents
* [1 Cast](#Cast)
* [2 Gadgets](#Gadgets)
* [3 Chapters](#Chapters)
+ [3.1 Blue Castle Case](#Blue_Castle_Case)
- [3.1.1 Gadgets introduced](#Gadgets_introduced)
- [3.1.2 File 201 - And Again...](#File_201_-_And_Again...)
- [3.1.3 File 202 - Countdown](#File_202_-_Countdown)
- [3.1.4 File 203 - Ivory Tower](#File_203_-_Ivory_Tower)
- [3.1.5 People](#People)
- [3.1.6 *Major events*](#Major_events)
+ [3.2 Shinichi's First Murder Case](#Shinichi.27s_First_Murder_Case)
- [3.2.1 File 204 - His First Bow](#File_204_-_His_First_Bow)
- [3.2.2 File 205 - Midair Sealed Chamber](#File_205_-_Midair_Sealed_Chamber)
- [3.2.3 File 206 - The Last Trump Card](#File_206_-_The_Last_Trump_Card)
- [3.2.4 File 207 - Hidden Within The Depth Of The Heart...](#File_207_-_Hidden_Within_The_Depth_Of_The_Heart...)
- [3.2.5 People](#People_2)
- [3.2.6 *Major events*](#Major_events_2)
+ [3.3 Treadmill Murder Case](#Treadmill_Murder_Case)
- [3.3.1 Characters introduced](#Characters_introduced)
- [3.3.2 File 208 - The Sakuradamon Incident!?](#File_208_-_The_Sakuradamon_Incident.21.3F)
- [3.3.3 File 209 - The Inspector's Investigation](#File_209_-_The_Inspector.27s_Investigation)
- [3.3.4 File 210 - An Unexpected Rival](#File_210_-_An_Unexpected_Rival)
- [3.3.5 People](#People_3)
- [3.3.6 *Major events*](#Major_events_3)
+ [3.4 Wedding Murder Case](#Wedding_Murder_Case)
- [3.4.1 File 211 - A Nice Day in Tokyo](#File_211_-_A_Nice_Day_in_Tokyo)
- [3.4.2 People](#People_4)
* [4 Trivia](#Trivia)
* [5 Cover in other countries](#Cover_in_other_countries)
* [6 See also](#See_also)