Battle to Protect Picture Books

Something big happened at Little Sapling Kindergarten! Some picture books on the bookshelf suddenly became dirty, and some even emitted an unpleasant smell. What's going on? The children were very worried and wanted to find out the truth of the problem and protect the beautiful picture books, so they came to the legendary "Xiao Shumiao Mysterious Office" and asked the famous detective Xiao Shumiao to help... What is the truth? Let's take a look~ Purpose: Use wisdom and action to protect the things you love