What's next?

Modified Rulebook Rules (includes basic facts and natural laws)

What the notebook says in it might just be the craziest things Spinel has ever seen.

The world runs on rules. Schools and companies have their handbooks. Neighborhoods have their homeowners associations. Even countries have their laws. You spend all day following rules. Wouldn't it be nice if you could be the one writing the rules for once? Now you can. This is the Rulebook. Simply write the new rules you wish to be followed. You can specify an organization, where any rule you can think of will be followed by everyone in that organization, or you can change reality itself, altering physical reality at your whim.
You can write Old Rules and New Rules. People will treat Old Rules casually, like they've been around forever. Reality will change to accommodate Old Rules as you write them. On the other hand, New Rules only go into effect once you've written them down. They'll still happen, but people may express nervousness, embarrassment, excitement, or other emotions about them.
Oh, and One last tip: make sure you use a pencil. Wouldn't want you regretting your changes.

Seeing nothing else written in it, Spinel turns the book in her hands. It doesn't look that special, so why would it just automatically change the rules in any place? It's probably bullshit, but now she has to try it out!