The inside of the Tree House Walls is seen in the episode "Shh!".
Trivia[]
- The Wall Spider has a web inside the wall.
- There is a Mouse Family that has a line of beds, each one smaller than the last (and also in different colors).
- When their alarm clock goes off, they run on a hamster wheel.
- There is also a man in the wall, that writes on his typewriter.
- The only text we've seen from his writing says "Life in the wall is a drag, man".
- There is also an Egyptian sarcophagus that has the face of a cat, and this is where BMO hides in "Shh!".
- The only known entrance to this place is a small hole, and Jake needs to shrink down just to fit inside, however, BMO gets in with no trouble.
- Finn and Jake tear through the wall with axes near the end of the episode, but this damage is never seen again.