Series Bible Template

A series bible isn't for any one book — it's for the whole series. It's the single source of truth every work draws from. By the time you're writing Book 2 or Book 3, you'll find your memory of Book 1 is far shakier than you thought; one shared bible is where you can check a fact on the spot without rereading a few hundred thousand words.

The most important column is 'cross-book status,' which sorts every entry into three kinds. 'Shared' is the iron rule that stays consistent series-wide and no single book may quietly change (like the protagonist's origins, or the core rules of the world). 'Added this book' is a person, place, or thing that first shows up in this installment. 'Overridden this book' is a local setting one book deliberately rewrites (say, a character's different name in a spin-off) — deliberate changes are fine, but flag them, so they don't get mixed up with 'changed it by mistake.'

The 'first appears in' column looks trivial, but it's your index for fact-checking your own earlier books. When you're not sure which book and chapter established 'she grew up listening to the sea,' this column takes you back to the source in a second, instead of flipping through a whole book to find that one line.

You don't have to fill it all in at once. Start by standing up the core of the 'shared' layer — the protagonist, the world's rules, the key locations — and point every book at it; let the rest grow as you write. The point is that the whole series has just one source for its settings, instead of each book keeping its own copy that contradicts the others.