Episode 340: Hidden Bathroom Secret ~ Part 1
Detektiv Conan Episode 340 „Hidden Bathroom Secret ~ Part 1“. Adapts chapters 423–425. First aired: 2003-11-03.
- Read on in the manga from: Chapter 426 (Volume 42)
- Title (Japanese): トイレに隠した秘密(前編)
- Title (romaji): Toire ni kakushita himitsu (Zenpen)
- First aired (Japanese): 2003-11-03
- First aired (German): 2018-11-30
- Category: Story
- Chapter adapted: Chapters 423–425