Book Three Is Where Book One’s Small Print Comes Due.
A series goes wrong slowly. A throwaway line in book one becomes a law of physics by book three, and a promise made on page 40 is still unpaid at the end of book four. Shiro is software for writing a book series: one shared World, facts that know which book you’re in, a board of threads across the books, and a series bible you don’t have to write twice.
Why Series Go Wrong
A single novel can be fixed before anyone reads it. A series can’t. Once book one is published, its small print is permanent: the brother mentioned once in passing, the fact that nobody can cross the Reach in winter, the mother’s death that was left vague because you hadn’t decided. By book three you’re writing around your own earlier sentences, with the books on your desk and a search box open.
Two separate problems hide in this. You have to remember everything, and you also have to forget it: when you go back to revise book two, you need Ilse as she was then, 29, unpromoted and still on speaking terms with her sister, without book four leaking into her dialogue.
Facts That Know Which Book You’re In
In a series, the World belongs to all the books at once, and each book keeps its own cast. Any fact can hold one value per book: Ilse’s age is 27 from book one, 29 from book two. Open her entry while writing book two and you see what’s true as of book two, with a quiet note that facts from book three are hidden.
The same hiding applies to what the AI is given, if you use it, so the World won’t tip it off about a betrayal you haven’t written yet.
A Board With the Whole Series on It
Under More on the Board, the Series view sets books as columns and threads as rows. A thread is a mystery, a promise or a relationship that readers follow from book to book. For each one, you can see the scene that opened it and the scene that pays it off, and the ones still open at the end of the current book are marked as such. It’s an accounting of what you owe.
If the AI is on, it can propose threads from the open book, and they wait below until you accept them. Elsewhere, the Timeline can sort its lanes by series, and the series itself keeps a reading order, an in-world chronology for your book 0.5, and a release plan that tells you, without tact, if you’re behind.
A Series Bible You Only Write Once
Your bible comes out of the World as an edition in Publish, so it’s made from what you already keep rather than a second copy that drifts. Choose who it’s for: an editor, a translator, a narrator or a co-author. Choose which book it runs up to, and nothing past that book appears, which is how you brief a narrator on book two without handing over the ending of book five. Portraits, relationships, the timeline, the style sheet, a glossary and pronunciations can each come or stay, and so can your secrets. Our guide to story bibles covers what belongs in one, with or without Shiro.
Box Sets and the Pages at the Back
A box set is another edition: a title such as “The Reach, Books 1–3”, its own cover, contents listing the books or every chapter, and each book’s dedication and epigraph kept if you like. For the back of every book, the series can supply Also in the series, a reading order page with the current book marked, and a newsletter link, under one pen name. Publish a new book and the older ones’ back matter updates the next time you export them, each store’s EPUB with its own links.
When a Planner Is Enough
If you already write happily in Word or Scrivener and only want to see your plotlines across books, Plottr is a planner built for that, and it exports to both. Shiro is for keeping the planning and the prose in one place.
The Questions People Ask
How do I turn one book into a series?
Open the book and choose Make this book 1 of a series, then add the next book. On disk, the series becomes a folder holding its books and the World they share.
What is a series bible, and can Shiro make one?
It’s the reference document on your characters, places, timeline and spellings. Shiro builds it from the World as an edition, for an editor, a translator, a narrator or a co-author, and can leave out everything past a given book.
Can I handle prequels and a novella that fits between books?
Yes. A series keeps a reading order and a separate in-world chronology, so a book 0.5 can sit where it belongs in each.
Can Shiro make a box set?
Yes. A box set is an edition of the series: its own title and cover, the books or every chapter in its contents, and each book’s dedication and epigraph kept if you want them.