User blog comment:Mira Laime/The best possible local navigation bar/@comment-4772526-20190729213243/@comment-26339491-20190730223508

There are certainly cases where a universal "Universe" or "World" first level item is the way to go. If the characters or items you have in your franchise are pretty consistent across installments, then that makes sense. Are the categories and articles that apply to multiple installments the same categories and articles, or are they separate?

For example, if you have the same characters or items appear across multiple installments, and the same information holds true about them no matter which installment a reader is currently consuming, then you don't need to divide your links by installments. Do you have one article about a specific character that appears in multiple installments, for instance? Or do you have separate articles for that one character per installment, because the character's story and attributes are a bit different each time.

For example: Dumbledore is a character who features in the seven Harry Potter books, in the movies, and in the Fantastic Beasts trilogy, and the different installments reveal different bits of his story. Yet he's the same Dumbledore throughout, just at different stages of his life. So having only one page about him makes sense. And since this is true for most of the Harry Potter world - people, items and spells appear in multiple installments, but are the same - this is one such case where a "Universe" top level item is best. Avatar is possibly similar!