Volume 21

Volume 21 was released on October 17, 1998 in Japan.

Blue Castle Case
Anime Episode 136-137: The Old Blue Castle Investigation Case

Shinichi's First Case
Anime Episode 162: The Locked Room in the Sky: Shinichi Kudo's First Case



Treadmill Murder Case
Anime Episode 146-147: Metropolitan Police Detective Love Story

Wedding Murder Case
Anime Episode 141-142: The Night Before the Wedding Locked Room Case

Trivia

 * The title for each chapter are worded as the following in Case Closed:
 * File 201 - Another Victim
 * File 203 - The Ivory Tower
 * File 204 - The First Entry
 * File 205 - A Locked Room in the Sky
 * File 207 - A Secret Hidden in the Heart
 * File 208 - The Sakuradamon Incident
 * File 209 - The Inspector's Deduction
 * File 210 - An Unforeseen Enemy
 * File 211 - A Perfect Day for Tokyo