River
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Ten First Lines for Your Next Chapter

Say what happens in the chapter and how the last one ended. Get ten first lines in your story's voice, each a different way in.

Context to provide

Describe the chapter you are about to write, or paste a few pages from your draft, and River writes ten first lines for it. Each takes a different way in: an action already underway, a line of dialogue, a concrete image, a thought, an anchor in time or place, the fallout from the previous chapter, and more. Each line is labelled with its approach and comes with a short note on what it sets up for the reader.

The lines are written for your story, not as generic prompts. River uses your characters, your point of view and tense, and the way the last chapter ended, so the new chapter picks up the thread readers are holding. Intensity varies across the ten, from quiet to sharp, because not every chapter should open at full volume. After the list, River names the three lines it would try first for this particular chapter and says why each one fits.

It suits novelists who know what happens next but stall on the first sentence, and writers revising chapters that all begin the same way. Treat the ten as options to adapt: keep one as it is, combine two, or let one approach suggest a line of your own that no list could have written. If you have a drafted chapter and want its whole opening paragraph reworked, paste the draft and ask River for that instead, and it will keep your voice.

What a chapter's first line has to do

A chapter's first line does two jobs at once. It pulls the reader forward and it orients them: whose head they are in, roughly where and when, and what is pressing on the character now. Lines that only pull can confuse, and lines that only orient can stall. The strongest first lines do both in a few words, often with one specific detail that implies the rest of the scene without stopping to explain it.

Readers arriving at a new chapter already know your characters, so the opening can skip introductions. You can start mid-conversation, on the result of the last chapter, or after a jump in time, trusting readers to fill the small gap. The usual trap is starting too early, with a character waking, travelling or thinking about what is about to happen. Starting closer to the first change in the scene usually reads better and wastes none of the reader's goodwill.

Different approaches suit different chapters. An action line suits a chapter that begins in motion; a line of dialogue drops readers into a relationship; a concrete image sets mood when tone matters most; a thought suits a chapter driven by a hard decision. Over a whole book, variety matters. If most chapters open the same way, readers notice the pattern, so it is worth checking your openings side by side now and then, especially during revision.

How it works

  1. Describe the chapter

    Say what happens and how the last chapter ended, or paste a few pages of your draft.

  2. River writes ten

    Ten first lines, each taking a different way in, in your story's voice and tense.

  3. See the top picks

    River names the three lines it would try first for this chapter and explains why.

  4. Adapt and write on

    Keep a line, combine two, or ask for more in the approach you liked best.

What you get

  • Ten first lines for your chapter, each one or two sentences and a different approach
  • Lines written in your point of view and tense, using your characters and events
  • Openings that pick up from how your previous chapter ended, when you mention it
  • A short note under each line on what it sets up for the reader
  • Intensity that varies across the ten, from quiet openings to sharp ones
  • River's three picks for this particular chapter, each with a one-line reason

Common questions

Will the lines sound like my writing?

They follow your point of view, tense and genre, and if you paste a few pages River matches your sentence length and register too. Still, treat them as starting points. Most writers take an approach they like and rework the words into their own rhythm. A pasted page from your draft gives River much more to match than a short description does.

Why ten lines?

Because a first line is short, and seeing many different approaches side by side is the fastest way to find the one that fits a chapter. Ten gives room for action, dialogue, image, thought, time and place, fallout and more, at different intensities, without repeating an approach. River then narrows the list to three picks so you are not left to choose alone.

What if none of them feel right?

Look at which approach came closest and ask for more in that style, or say what is missing, such as a quieter tone or a different character's view. Sometimes the list shows that the chapter itself should start at a different moment, which is useful to know before you draft. River will write a new set from that starting point.

Should every chapter open with a dramatic hook?

No. After an intense chapter, a quieter first line can give readers a breath while still carrying a question forward. Pacing across a book needs variety. River mixes quiet and sharp openings in every set, and you can ask for a calmer or tenser set if the chapter calls for one.

Can I use it for short stories?

Yes. Any story divided into sections has openings that work the same way: orient the reader and pull them forward. Describe the section, mention what came just before, and River writes ten first lines for it. For a story's very first line, where readers know nothing yet, describe the whole premise instead.

Ten First Lines for Your Next Chapter

Describe what you need, add any files you have, and your workspace opens with the work already underway.