Brainstorming from three unrelated prompts is a simple method. Instead of developing one prompt on its own, you take three that were never meant to go together and build a single story out of them. If you have ever wondered how to brainstorm a story that could only have come from you, this is the method I trust most. The work happens in the space between the cards.
This is the first entry in Three Cards, One Story, a series of 26. Each Sunday it takes the week’s three prompt cards, from Monday, Wednesday and Friday, and fuses them into one storyline. Here are this week’s three.
Monday’s card: the Character
A lighthouse keeper who has been secretly answering letters addressed to someone who died forty years ago.
Full prompt + 3 story directions →
Wednesday’s card: the Plot
A small town holds a festival every year to celebrate an event that, the records show, never happened.
Full prompt + 3 story directions →
Friday’s card: the World Rule
Lies are visible as smoke, but only children can see it.
Full prompt + 3 story directions →
Why Three Cards Work
Think about what each additional prompt gives you. One prompt gives you a premise: a situation worth looking at. Two prompts give you a plot, because now two things are pushing against each other. Three prompts do something different. They refuse to fit together on their own, so you have to invent whatever connects them.
That connecting material is where an original story comes from. The cards are shared. Anyone can read them. But the bridge you build between them belongs to you, and no other writer who reads the same three cards will invent the same connection. The method is really a way of forcing yourself into the part of the work that only you can do.
Doing it well takes three moves, and they go in order.
Move One: Give Each Card a Job
Before you look for connections, decide what each card is for. Three ideas with no roles will compete for the center of the story. Three ideas with clear roles will cooperate.
The world rule is the physics. It tells you what is possible in this place. The plot is the engine. It creates the pressure that keeps the story moving. The character is the heart. This is the person the pressure lands on, the one whose life we care about when everything starts to give way.
Applied to this week’s cards, that means lies show up as smoke only children can see, a town celebrates something that never happened, and a lighthouse keeper quietly answers a dead man’s letters. Once each card has its job, you stop asking “which one is the story?” and start asking how they serve each other.
Move Two: Find What They Share
Now lay the three cards side by side and ask one question: what single thing do all three care about?
Look closely and the answer comes into focus. The keeper keeps up a loving deception. The town celebrates a false history. The world makes deceit physically visible. All three are about a lie that someone keeps alive on purpose.
Noticing that shared concern does more than tidy up the brainstorm. It hands you the theme of the book: what does it cost to keep a necessary lie alive, and who pays? Every scene you write later can be tested against that question.
Move Three: Ask the Forcing Question
The last move is the one that turns three ideas into one story. You ask the question that forces them together: what if they are connected? Here that becomes something sharper. What if they are the same lie?
This is the moment to be bold. Don’t settle for the cards sitting near each other in the same town. Push until each card’s secret is the other cards’ secret too.
The Storyline That Comes Out
Follow that question and the pieces start locking into place.
The festival celebrates a legendary rescue. The town’s founder, so the story goes, saved a fleet from the rocks by the lighthouse. The records show no fleet, no storm and no rescue.
The dead man the keeper writes to is that same founder-hero. The letters come from descendants of the “rescued” families, people raised on a story nobody ever questioned. In secret, the keeper has become the last person holding up the town’s founding myth.
Each year at the festival, the whole town retells the rescue aloud, and the square fills with smoke that only the children can see.
Our protagonist is a girl of thirteen. She has seen the smoke at every festival and said nothing, because children who describe the smoke get corrected and then ignored. This is her last year with the sight. It fades at fourteen.
During festival week she notices one adult whose mouth stays clear: the old lighthouse keeper, who stays silent while everyone else celebrates. He doesn’t tell the story because he answers the hero’s mail. He knows the truth.
And the keeper is dying. He needs someone to take over the letters. Beneath all of it, the town’s survival rests on a winter too shameful to remember honestly.
The working title is The Last Summer of the Beautiful Lie, and the question that carries the book is this one: when a lie is the only thing holding a town together, is exposing it courage, or just another kind of shipwreck?
Notice that none of those details were on the cards. The founder, the fleet, the girl, the fading sight: all of it is connecting material, invented to answer the forcing question. That is the method doing its job.
Try It With Any Three
You can use this with any three prompts, however unrelated they seem. Give each card its job. Name what all three share. Then ask the question that forces them into one story. The stranger the combination, the more you will have to invent, and the more the result will sound like you.
I would love to see what you build from this week’s cards. Share the storyline you come up with, even if it is only a few sentences. Your connection will not look like mine, and that is exactly the point.
Draw Your Own Hand
Three new cards land every week. If you don’t want to wait for Sunday, the free Story Prompt Library deals you a hand across all thirteen of its slots, from character, plot and world rule to villain, setting, twist and more. Draw a hand, give each card a job, and see what story it wants to become.
