Toilet Gang Junior Detective 9: The Mysterious Key Test [Chinese]

By: Lin, You Ru

Even when there are no cases, we need to exercise our brains so they don't rust! The Toilet Gang has launched a detective challenge to see who can find the answers to various mysteries on campus. Unexpectedly, while searching for solutions to the puzzles on campus, they find a mysterious key hidden inside a snack bag. What is the mystery behind this key? In another story in this episode, the young detectives' investigation isn't on campus, but in a market! In Taiwanese markets, there are not only all kinds of fruits and vegetables, meats, but also a rich variety of delicacies...

• Format: Paperback
• Language: Chinese
• ISBN: 6267772411
• ISBN13: 9786267772416
• Release Date: December 2025
• Publisher: Xiao Lu Wen Hua