Chapter 4

1. The Spider's Stolen Silk

2. The Mystery in the Snow Maze

3. The Case of the Stinky Swamp

4. The Case of the Talking Tree

5. The Trail of the Tuatara

6. The Disaster at the Dust Spa

7. The Mysterious Swamp Rats

8. The Vanishing of Mr. Blue

9. The Bat Who Couldn't Remember

10. The Hidden Hitchhiker