By now, you have hopefully gathered enough pages to be able to write your own Age. This can be done via the Writing Desk. When it comes to writing ages that have little to no instability, or stable Ages, things can get a bit more difficult.
Throwing any old pages, in any order, into a book can lead to Ages being very unstable. You can throw a few pages into a Descriptive Book, and when the age is created, the mod will autofill the book with other random pages. This can still lead to unstable Ages, and/or Ages with unintended properties.
In order to write a stable age, you need to follow specific grammar rules. It’s best to plan out what kind of world you want and then try and write a world with the following grammar rules:
Link Panel Page
Biome Distribution Page (only one)
Terrain Block Page
Ocean Block Page or No Seas Page
World Type Page (only one)
Weather Page (only one)
Lighting Page (only one)
(Optional, for Sun) Color Pages, Sunset Color Page
Normal Sun (if no Sun, replace line with Dark Sun)
(Optional, for Moon) Color Pages, Sunset Color Page *
Normal Moon, (if no Moon, replace line with Dark Moon)
(Optional, for Stars) Color Pages
Star Page (if no stars, replace line with Dark Stars)
Color Pages: Sky Color (Or replace line with Natural Sky Color)
Color Pages: Night Sky Color (For Default Night Sky, use Black Color )
Color Pages: Fog Color (Or replace line with Natural Fog Color)
Color Pages: Cloud Color (Or replace line with Natural Cloud Color)
Color Pages: Water Color (Or replace line with Natural Water Color)
Color Pages: Foliage Color (Or replace line with Natural Foliage Color)
Color Pages: Grass Color (Or replace line with Natural Grass Color)
(Optional) Boundless Sky and/or Rainbow Pages
Medium Feature (add a Block Page before if using Spheres Page or Spikes Page)
If using Crystalline Formations Page: add a Block Page before this Page (Block Pages accepted are:
If using Deep Lakes Page or Surface Lakes Page: add a Block Page (liquid), Ice Page or Packed Ice Page before this Page
If using Obelisks Page: add a Block Page before this Page.
(Optional: Effects Pages)
Clear Modifiers Page (Clear Modifiers is optional but reduces the chances of the age being violently unstable due to grammar errors, generates a small amount of instability for every “dangling” or “unused” page it accepts, can also be used as a “safety net” at the end of complex passages if you’re unsure of your grammar.)
*Minecraft Moon(s) do share the same "Sunset effect" as the Minecraft Sun(s). The Sunset Color page is valid and does create a colored "moonrise/set" when the moon sets/rises.