Here is the story behind it. One of you (Deborah 😉) - a writer right here in this community - reached out and said something simple but brilliant: "I love the books, but sometimes I just want to change a character's name or fix a small detail without regenerating the whole thing and spending credits." That is exactly the kind of feedback I build on. So I sat down and made it happen. Now you can search your whole book and change any word, name, or phrase - instantly, everywhere it appears. Rename a character, fix a recurring term, correct a small detail - done in seconds. No regenerating. No credits spent. Full control, right in your hands. It comes in two modes: Simple - find an exact word or phrase and replace it everywhere in the book. Smart - perfect for renaming a character. It updates every form of the name so nothing slips through and your book stays consistent from cover to cover. You will find it right in the writing view - look for the Find & Replace button, or just press Ctrl+H. This is exactly why I love building BookNova as a solo founder, together with you. You share an idea, and it becomes a real feature - fast. So keep them coming. The next feature might be the one you suggested. Go give it a try, and let me know what you think.

You've been asking, and it's finally here. BookNova now writes full-length Horror, and it's not a bolt-on — it's a first-class genre with its own story engine, cover styling, and pacing built specifically for dread. And because horror is one of the most powerful, on-page genres in the room, I didn't want to give you one generic "scary" setting. You get 8 dedicated sub-genres, so the AI writes to the exact flavor you're going for: 👁️ Supernatural — ghosts, curses, things that shouldn't exist 🧠 Psychological — the horror that lives in your character's head 🏚️ Haunted House — the place itself is the monster 🔪 Slasher — tension, the stalk, the final survivor 🌌 Cosmic / Lovecraftian — vast, indifferent, unknowable 🕯️ Gothic — decaying estates, buried family secrets 🐺 Creature / Monster — something out there is hunting 🏡 Small-Town Horror — ordinary Americana turned wrong (the classic King register) Why now? Horror is having a serious moment. It's one of the fastest-growing, most bingeable categories on Kindle, KU, and BookTok right now — readers devour it and come back for the next one. If you've been sitting on a creepy idea, this is the moment to write it. ✍️ One more thing I'm genuinely excited about: you can now name your influences directly. Want something in the spirit of Stephen King, Shirley Jackson, Paul Tremblay, or another author you love? Say so. The engine uses those as tone anchors to shape the atmosphere, voice, and cover — so your book lands in the right corner of the shelf. 👉 Start a new fiction book, pick Horror on the genre step, choose your sub-genre (or "General Horror" and let the AI adapt), and go. Prefer to steer it yourself? Use "I Have My Own Story" and describe your premise in your own words. Go write something that keeps people up at night. 🌙 Can't wait to see what you make — drop your horror titles in the comments when they're done.

One of the features coming with Sail Mode (our chapter-by-chapter writing flow, currently in development) is per-chapter length control. Here's what it does and how it works. The idea In published fiction, chapters aren't all the same length. Length is used to control pace: tense or fast-moving scenes tend to run short, while setup, immersion, and emotional depth run longer — and the climax is often the tightest section of the book. A fixed word count per chapter (total ÷ chapters) hits a target length but produces an even, mechanical rhythm that real novels don't have. Sail Mode varies chapter length instead — automatically, with a manual override. The automatic part For each new chapter, Sail sets a target length from three inputs: 1. Pace — the pace you pick for the chapter (linger / natural / push) shifts the length. Lingering runs longer; pushing the plot forward runs tighter. 2. Story position — where the chapter sits in the arc. Opening/setup chapters get more room; chapters in the climax zone run shorter and faster. 3. Length budget — your book's overall target. If earlier chapters ran long or short, later targets adjust to keep the whole book on the length you planned. The result is a natural variation from chapter to chapter, with the total still landing on your intended book length. No setup required — it works by default. The manual part Every chapter shows its suggested length in the writing panel, labelled punchy, standard, or immersive. If you want a specific chapter shorter or longer, type in your own word count — that number is used for that chapter. A reset option returns it to the automatic suggestion. So the length is decided for you when you don't care, and editable per chapter when you do. Status Sail Mode is still in development; this feature will ship with it. More previews to follow.

I'm really excited about this one. Up to now, every book you made was its own island. Starting today, you can take any finished book and build a whole series from it — and BookNova carries your world and characters forward for you. There are two ways to do it, and they match how real authors actually build series: 🔗 Continue the story — same protagonist, the plot carries on (think trilogies, sagas, a returning detective). Book 2 picks up from where Book 1 ended, remembers what happened, and keeps everyone consistent. 🌍 New story, same world — a fresh lead and a fresh plot in the same world and cast, but each book reads on its own. This is the romance/cozy-mystery model — "same town, new couple (or new case) every book" — and it's fantastic for letting new readers jump in anywhere. Here's how to do it 👇 — Open your library and find any finished book — Click "Write next book" on the book's card — Pick the type: Continue the story or New story, same world — Choose what carries over — world, tone, characters, series canon, and (for continuations) a recap of what happened — Choose which characters carry over — this is my favourite part: for a "same world" mystery you can carry just your detective and leave the one-book victim and culprit behind 🕵️ — Set how much time has passed, and (for a new-world book) pick your new lead — Hit generate — you'll land in a Story Bible that already knows your world, with your returning cast already on the Characters step A couple of things I care a lot about that are baked in: ✅ Your characters remember and evolve. If someone died or got married or moved away in Book 1, that carries forward — no one gets accidentally resurrected, and you can edit each character's state before you generate. ✅ Continuity is handled for you. Names, places, world rules and established facts stay locked across the whole series, right down to the finished prose — so you're not maintaining a series bible by hand. ✅ You're in control. You decide what carries and what doesn't. Everything you carry is shown to you clearly before you generate.

You already fill in the big stuff — appearance, motivation, backstory, arc. But there's always that one detail that makes a character feel real and doesn't fit any box. Now it has a home. 🏡 You can add as many extra pieces of info as you want. Each one has three simple parts: ① Type (pick from a dropdown) ② Label (a short name to keep you organized) ③ Detail (the actual info) The magic is in the Type, because it tells BookNova how to use each detail. There are three: 🔹 Trait — an always-true fact, treated as canon across the whole book. 👉 e.g. "Handedness → Left-handed" or "Distinguishing mark → A faded scar over her right eye" 🔹 Note — your catch-all for anything else: lore, quirks, secrets, history. 👉 e.g. "Fear → Secretly terrified of the ocean" or "Backstory → Raised by smugglers, distrusts anyone in uniform" 🔹 Mannerism — a recurring behavior tied to a trigger. This is the one I'm proudest of. 👇 👉 e.g. "Spell tell → Lets her hair down right before releasing a powerful spell" Here's why Mannerisms are special. Anyone can tell an AI "this character does X." The hard part is getting it to do X only when the moment actually calls for it — not stamping it into every chapter, and not describing it the same way each time (a dead giveaway a machine wrote it). So BookNova handles them differently under the hood: it weaves a mannerism in only when the trigger genuinely happens in a chapter, and rewrites it fresh every time. Your mage lets her hair down when she's about to unleash something powerful — a real, earned signature moment your readers start to anticipate — instead of a tic on every page. That's the difference between a character that feels written and one that feels alive. ✨ Best part? It lives right on the character, so it carries across every book you use them in. Build once, and every trait, quirk, and signature move follows them everywhere. 📚 Go try it and tell me what you put in — I already know some of you are going to build some wonderfully weird characters, and I'm here for it. 😄