|“You four have merely scratched the surface of your full potential.”|
Wu kept an account of his own experiences of learning Spinjitzu. When he was young, Wu wrote the secrets he learned from the Scroll of Forbidden Spinjitzu, but when he was older and wiser, he placed a seal over it so no one would ever see it. At some points in his life, he stopped writing in it for years but resumed after Garmadon's banishment and while training the Ninja.
Wu is seen holding and referring to the lesson book while Kai is complaining about having to attend a Spinjitzu lesson, believing the Ninja know everything there is to know.
- 1. "Master Class"
- This book exists in real life as The Book of Spinjitzu, which its design is based on.
- In Chapter 9 of the non-canon novel Way of the Departed, the Book of Spinjitzu appears to be separate from the lesson book seen in "Can of Worms." In the story, the Book of Spinjitzu was written by Wu during the events of Season 7 after being hit with the Time Punch, and it was left for Lloyd.