Sondeas Ghostwriter

Your book, by conversation

Tell your book. We keep track and write it with you.

A ghostwriter for any book, fiction or non-fiction, long or short. It asks one good question at a time, remembers every character, idea and fact, keeps the whole book consistent, and drafts each chapter in your own voice.

Start my bookHelp someone write theirs

Free to start, no card needed. Type, or just talk.

Interviewer — You said Mara hasn't been back to the harbour since the fire. What makes her go back now, and who is with her?
Her younger brother Tomás. He's the one who finds the ledger, so she has no choice — she goes at night, when the cranes are still…
✓ Topic covered: “Mara returns to the harbour”+ Fact: Tomás finds the ledger? Continuity: in chapter 2 Tomás was her older brother — which is it?

How it works

  1. Discovery

    A short conversation about the book you want: what it is, who it is for, what must be in it, and what stays out.

  2. Your book plan

    A structure, a through-line, chapters with what each one must cover, and a codex designed for your book. All editable.

  3. Interviews

    Chapter by chapter, one question at a time. Every topic is ticked off as you tell it, loose threads are saved, and anything that does not fit is raised.

  4. Chapters in your voice

    Drafts that sound like you and agree with everything the book has established. You edit, approve, print, or share.

Any book, long or short

Memoir or life story

Your life, or a chapter of it, told in your own voice.

A book on what you know

Business, how-to, self-help, a method or big idea: your expertise turned into a book.

A true story

History, biography, family history or an event you witnessed, told like a story.

A novel

Any genre, from the first spark to the last chapter. You tell the story; it writes it with you.

Short stories

One short story, or a collection of them.

A children's book

A picture book, a first chapter book or a middle-grade novel.

What a good ghostwriter does — and so does this

Listens more than it speaks

Short questions, long answers. You can see the balance on screen: your words versus the interviewer's.

Asks for the concrete

A scene instead of a summary, a real case instead of a principle, what the character actually says. Specifics are what make a book worth reading.

Keeps a codex of your book

Characters, places, ideas, frameworks, sources: whatever your book needs to remember, with every fact you have settled. Designed for each book, not a fixed form.

Keeps the book consistent

When something you say does not fit what the book already holds — an age, a date, a rule of your world, a step of your method — it asks, instead of letting the contradiction into the manuscript.

Does its homework

For subjects that need it, a researcher reads up on the field, the period or the place, so the questions are sharper. It searches only general topics, never your private material, and cites its sources.

Never invents what is yours

Non-fiction is drafted only from what you told. In fiction it never decides your plot or your characters, and it tells you which small details it filled in.

Simple pricing

Free preview

The discovery conversation, your full book plan, 25 answers and your first chapter written in your voice.

Complete book · $129 once

Unlimited interviews, every chapter drafted and rewritten, research and continuity checks, the printable book and a private share link. No subscription.

See what's included

Start with one question

It takes a minute. Your book stays private unless you choose to share it.

Start my book