Episode 136: The Old Blue Castle Investigation Case ~ Part 1
Detektiv Conan Episode 136 „The Old Blue Castle Investigation Case ~ Part 1“. Adapts chapters 200–201. First aired: 1999-02-22.
- Read on in the manga from: Chapter 202 (Volume 21)
- Title (Japanese): 青の古城探索事件（前編）
- Title (romaji): Ao no kojō tansaku jiken (Zenpen)
- First aired (Japanese): 1999-02-22
- First aired (German): 2003-04-11
- Category: Story
- Chapter adapted: Chapters 200–201