Mystery novels for Amazon KDP
Write a mystery novel with AI
Before the chapters you set up the case: culprit, motive and clues. The app checks that the reader could have solved it along the way, and only then the AI writes, scene by scene.
The account is free. The book costs from R$ 199, paid once, with no monthly fee.
The case comes first
Culprit, motive and clues are settled before the plan: the AI does not change the culprit halfway through.
Fair play with the reader
The app checks that the clues are in the book for the reader to solve along.
Ready for KDP
PDF and DOCX in the formatting KDP asks for, and a cover with spine sized to your interior.
The cover comes ready too
Three variants built by the CoAutor cover engine for a sample book. You pick one, adjust colors and text, and download it with spine and back cover sized for KDP.
An excerpt written by CoAutor
This excerpt was written by CoAutor for a sample book, unedited. In your book, the text follows your tone, your material and your revisions.
Sample excerpt
The night porter hadn't moved from the doorway. That told Inspector Hale more than the man's statement would.
"I didn't touch anything," the porter said. "Only the light."
The ski room smelled of wet wool and wax. The guest lay on his side between the racks, one glove off, one glove still on. Snow had come in under the outer door and dried in a pale crust across the floor, and the crust held bootprints going out and none coming in.
Hale crouched, careful of the melt line. Behind him, somewhere above, a radiator knocked twice and went quiet.
"Nine hours," she said. "You went off at ten and this room was locked. Who has the second key?"
The porter looked at the ceiling.
How it works
- 1
Give the topic, who it is for and the book language (Portuguese or English).
- 2
Choose the title and set up the case: culprit, motive and clues.
- 3
Approve the chapter plan, already checked by the app.
- 4
Ask it to write and review part by part, or the whole book at once.
- 5
Generate the cover and the description, and download the files.
What you get
- A mystery novel in chapters, written scene by scene.
- A checked case: the reader can reach the culprit.
- Automatic review of the text.
- Cover with back cover and spine sized for KDP.
- Description for the Amazon page.
- Interior PDF and DOCX, ready to upload to KDP.
One payment per book
- Up to 15,000 wordsR$ 199
- Up to 30,000 wordsR$ 379
- Up to 50,000 wordsR$ 599
No monthly fee. The package does not expire.
To compare: the cover alone, from a designer, costs R$ 500 on average in Brazil, and interior layout R$ 6 to R$ 12 per page.
Frequently asked questions
Does the AI forget who the culprit is?+
The case you set up goes along with every writing request: culprit, motive and clues are the same from the first chapter to the last.
Does the text sound like it was written by AI?+
The automatic review strips out repeated phrasing, overstatement and the "not X, but Y" formula, the most common tell of AI text. You set the tone and your own voice before writing, and review each part before moving on.
Do I need to keep the tab open while the AI writes?+
No. Writing runs on the server: you ask for it, close the tab, and an email tells you when it is done.
How much does it cost?+
You pay once per book, by size: up to 15,000, 30,000 or 50,000 words. No monthly fee, and the package does not expire. The account is free: you can create the book and see the path before paying.