Wha? is a yellow and blue book with a picture of a question mark on it.
- An avalanche in Peaceville was once caused by a tuba solo.
- There is a shape shifting instrument called the Flute of Rocklympus that has taken over people's minds and tried to destroy all other music for generation.
- There might be more than one copy of Wha?, as Trina threw it into a wood chipper, but later on Kin and Kon are seen reading the book and it's perfectly intact.