Stop staring at a blank page. Start with a premise that already sells.
100+ market-validated fiction premises across cozy mystery, romance, fantasy, horror, and thriller — each wrapped in a Story Architect prompt that builds your complete outline in one paste.
The blank page problem isn’t about ideas.
It’s about the right ideas.
You can brainstorm fifty story ideas in an afternoon. The hard part is knowing which one a reader will actually buy.
AI premise soup
Generic AI premises drift toward trope mush. No market awareness, no read-through math, no read of what’s actually moving on Amazon this quarter.
The cool-idea trap
The gap between “cool idea” and “marketable book” is where most writers lose months and ad dollars. Cool isn’t the same as cashflow.
Outline paralysis
Even when you have the right premise, sketching it into a chapter-by-chapter spine takes days. Days you could be writing.
A library full of premises that are built to sell.
- Every premise sourced from K-Lytics market data — rising tropes, underserved niches, proven reader demand.
- Multi-genre, with sub-genre filtering. Find exactly your lane.
- Each premise ships with a fully-rendered Story Architect prompt. Paste it. Get a complete bible and chapter roadmap back.
- Not just title + tagline. Protagonist sketch, setting, conflict, trope tags, heat level, and the market-validation note explaining why it sells right now.
genre: contemporary romance / romcom
heat: open door, mid-spice
tropes: [fake-dating, single-dad, second-chance]
setting: coastal Massachusetts, present day
length: 25k words, 12 chapters
task:
Build a story bible for the premise below.
Include:
– protagonist + love-interest bios
– inciting incident + black moment
– chapter-by-chapter beat sheet
– intimate-scene placement plan
– HEA architecture
premise: “Bid Day”
She bid on his services at the charity auction
to make her ex jealous. He is a single dad who
agreed to be auctioned for his daughter’s
school. Eight weekend dates of pretending
later, the pretending stops working.
What you get
Everything you need to walk in cold and walk out with a marketable book on the rails.
100+ premises at launch
Across cozy mystery, paranormal cozy, contemporary romance, paranormal romance, dark MM, romcom, cozy fantasy LitRPG, urban fantasy, psychological horror, and dark stays. 20–30 new premises added monthly.
Story Architect prompts
Genre-specific, fully rendered. Paste into Claude, ChatGPT, or Gemini and get a complete story bible and chapter roadmap back. No fill-in-the-blank templates.
Market validation notes
Every premise comes with a K-Lytics-sourced note explaining the market signal — which trope is rising, which niche is underserved, why this hook lands right now.
Faceted search & filters
Browse by genre, archetype, trope, or heat level. Sort by recency, by demand, by your own catalog gaps.
One-click copy
One tap copies the full architect prompt to your clipboard. Open your AI tool of choice and paste. You’re writing by the end of the hour.
Personal catalog tracking
Mark premises Favorited, In Progress, or Written. Your own catalog dashboard inside the library — never re-pick a premise you already shipped.
Sample the shelves
One premise per genre. The full architect prompt is gated — this is the teaser only.
Knitting Circle Murders
A retired Boston librarian moves to small-town Vermont to inherit her aunt’s yarn shop — and finds a member of the Tuesday knitting circle dead in the supply closet on opening day.
Market note · Crafting cozies up 18% YoY; the “yarn shop + small town” combo is underserved on Amazon’s top-100 cozy lists.
Bid Day
She bid on his services at the charity auction to make her ex jealous. He’s a single dad who agreed to be auctioned for his daughter’s school. Eight weekend dates of pretending later, the pretending stops working.
Market note · Single-dad contemporary held top-20 placement in the category for 14 consecutive months.
The Quiet Inn
A burned-out healer retires from the adventuring life and opens a roadside inn. The system keeps awarding her experience points for making soup. She didn’t ask for this.
Market note · Cozy fantasy LitRPG is the fastest-growing fantasy subgenre indie-side; “retired adventurer” arc outperforms “chosen one” arc 3:1 on read-through.
Suite 6
A travel writer books a weekend at the boutique hotel her sister disappeared from twelve years ago. The staff insists her sister was never a guest. Suite 6 doesn’t appear on any floor plan.
Market note · Single-location horror in the Horror Short Stories category averages 8K KENP/day with minimal ad spend.
Last Round
A retired Army Ranger working private security for a tech CEO realizes the CEO’s daughter isn’t paranoid — someone really is hunting her. He has 72 hours to figure out who before the next bid window closes.
Market note · Action thriller with female protectee + male protector dominated Kindle Unlimited bestsellers Q1 2026.
Premise Library vs. Prompt Packs
Two different tools we make. Here’s when each one fits — and why most writers eventually use both.
The Premise Library
Use the Premise Library to pick a market-validated story, then run it through the matching Prompt Pack for the deepest multi-phase workflow. The Library tells you what to write. The Pack walks you through how.
How it works
Three steps from blank page to chapter outline. Roughly one hour, end to end.
Browse & filter
Search by genre, trope, heat level, or archetype. Find the premise that fits your voice and your market.
Copy the prompt
One tap copies the full Story Architect prompt to your clipboard. Open Claude, ChatGPT, or Gemini.
Get your outline
The AI builds a complete story bible and chapter-by-chapter roadmap. You’re writing by the end of the hour.
One purchase. Every premise. Forever.
No subscription. No recurring fees. Lifetime members get every future premise included.
Romcom Edition
- Every romcom premise in the Library
- Full Story Architect prompts
- Market-validation notes on every premise
- 20–30 new premises added monthly
Lifetime Access
- 100+ premises across every genre we cover
- Every monthly addition forever
- Faceted search, filters, personal catalog tracking
- 7-day money-back guarantee
- No subscription — pay once, done
Your premises. Your books.
No genre gating. No format limits. No usage restrictions on what you write.
Every premise in the Library comes with a Story Architect prompt and a market-validation note. When you buy any tier, you can use those premises to write any kind of book — fiction, nonfiction, short stories, novellas, full-length novels, series, ghostwritten work, AI-assisted, AI-generated. Publish under your name, sell on any platform, translate, audio-rights, film-rights — it’s yours.
Want to make money sharing the Library with other authors instead of reselling the prompts? Join the Books & Biz affiliate program and earn a cut on every signup you refer.
Questions, answered
How many premises are included?
100+ at launch across cozy mystery, paranormal cozy, contemporary romance, paranormal romance, dark MM romance, romcom, cozy fantasy LitRPG, urban fantasy, psychological horror, and dark stays. We add 20–30 new premises every month.
What is a Story Architect prompt?
A fully-rendered, genre-specific instruction you paste into Claude, ChatGPT, or Gemini. It tells the AI exactly how to build a story bible and chapter-by-chapter roadmap from the premise — no fill-in-the-blank templates, no generic outputs.
Can I publish books based on these premises?
Yes — any format, any genre, any way you write them. Fiction, nonfiction, novellas, full-length novels, ghostwritten work, AI-assisted, AI-generated. The premises and Story Architect prompts themselves are copyrighted by Dana Sacco / Books & Biz, but every book you write from them is 100% yours to sell, license, translate, or option for film. The only thing you can’t do is resell or redistribute the prompts themselves — those are the product.
Can I make money referring other writers to the Library?
Yes. Join the Books & Biz affiliate program and earn a commission on every signup you refer. That’s the right way to share — not by reselling the prompts.
Can multiple people use the same premise?
Yes. Premises are non-exclusive. Two writers working from the same premise produce two completely different manuscripts — we’ve never seen overlap that mattered.
Is this a subscription?
No. One payment, lifetime access, all future premises included. The single-genre edition is $27 lifetime. The full Library is $147 lifetime.
What if I’m a Plugin Lab member?
You get the full Premise Library included with your Lab membership. Log into booksandbiz.com with your member account and head to /vault/ — everything will be unlocked.
Refund policy?
7-day money-back guarantee on any tier. If the Library doesn’t earn its keep in your workflow, email support within 7 days and we’ll refund.
If other writers buy the same premise, won’t we all end up writing the same book?
Not even close. The Story Architect prompt is a starting point, not a finished story. Every time it runs, the AI generates different names, settings, scene beats, and structural choices — so two writers get two different codexes from the same prompt. Then you shape it: what to keep, what to change, where to deviate. And the prose is all you. Voice, dialogue, pacing, the actual writing — that’s where every book becomes its own thing. Two romance authors handed the same trope produce wildly different novels. Same principle here.
Stop staring at the blank page. Start with a premise that already sells.
One purchase. Every premise. Forever.
