Paranormal Thrillers writing prompt

The Subway's Endless Hour

The passengers of a subway train find themselves stuck in a continuous loop, re-living the same eerie hour over and over. As panic sets in, a young scientist among them theorizes that they are trapped between dimensions—both physical and paranormal. Detail their harrowing attempts to escape while encountering increasingly terrifying anomalies.

Suggested length: A short story: 1,500 to 5,000 words, or flash fiction under 1,000

Next prompt →
Write it now

Start the clock

Pick a sprint, press start and keep going until it stops. Momentum beats polish on a first draft.

0 words · saved in this browser

Make it yours

Three ways to take this prompt somewhere nobody else will.

  1. Raise the stakes from personal to public halfway through.
  2. Open with the threat already in motion, not the setup.
  3. Make the person helping your hero the one to worry about.

Writing thriller books

Something terrible is coming. Can they stop it in time?

Where a mystery looks back at a crime, a thriller looks forward at a threat. The reader often knows more than the hero, and the tension comes from watching danger close in. Short chapters, high stakes and a ticking clock are the tools of the trade.

What readers expect

  • A clear, escalating threat
  • A hero under pressure
  • Twists and reversals
  • Pace: little time to breathe

A tip before you start

Put a clock on it. A deadline the reader can count down turns every scene into a race.

More about thriller in our book genres guide

Fifteen minutes in? Keep going.

Chapterly gives a draft somewhere to grow: chapters, daily word goals, and readers when you're ready.

Plans from $9.99 a month. Cancel any time. Your words are always yours.