Inside Lyra, our story engine

Lyra is the story engine we built to turn source material into stories you can explore, and every illustrated story in Storybook Bible is made with it. This is a tour of how it works, and of the places where we deliberately keep a person in charge.

Start anywhere

A story can begin as a scripture passage, an outline, a lesson plan, a myth, a historical episode or a classic tale. Lyra isn’t tied to one tradition: it makes Bible stories today, and it was built for mythology, history, classics and folklore too.

Visual canon before pictures

The hardest part of an illustrated series is consistency. A fisherman’s face, his cloak and his boat need to look the same on the first page and the last, and in the next story too. So before a single page is illustrated, characters, places, props and art styles are defined as reusable reference packs. Every illustration is anchored to them, and so is every visual review.

A guided builder, with the cost up front

New stories go through a four-step builder: the idea, the readers it is for, the artwork and an estimate. Every run is costed before it starts, and nothing starts until someone confirms it. Starting a run is a separate action after the cost review, and if a start is interrupted the same accepted job is replayed rather than started twice.

Agents that flag, people who decide

Once pages exist, specialist review agents check them for continuity, style, outfits, text, sources and metadata. A visual audit compares pages against the approved references. The agents flag problems; an editor decides what changes, and a regenerated page replaces the old one only once someone accepts it.

• Continuity: does the story agree with itself from page to page?
• Style and outfits: does each page match its approved reference art?
• Text, sources and metadata: is what we say accurate and correctly labelled?

Nothing publishes itself

Staging a finished story sends it to a private review. Going live is a separate, deliberate step that a person takes. The same engine also prepares what goes around a story: quizzes, colouring pages, seek-and-find games, artifact records with 3D models, links to the Bible map and narration.

That’s the whole idea behind Lyra: AI does the heavy lifting, and people make the calls that matter.