There are novels where the character spends three hundred pages distrusting everyone and then, on the second-to-last page, hugs the neighbors, forgives their father and adopts a dog. Just like that. The reader closes the book with the feeling that somewhere between chapters 29 and 30, someone performed a brain transplant.
The change itself is fine. The problem is that nobody saw it coming.
What an arc is
The arc is the path a character travels on the inside, from who they are at the start to who they are at the end. If you’ve read “Wants, needs and believes a lie”, you already have both ends: at the start, they believe the lie; by the end, they see the truth. (Or they don’t, and then it’s a tragedy. That works too.)
In Wanted: One Dragon, Sunday Plot’s sample novel, Mara starts out sure she’ll never really be from Valdrago. She ends up dancing at the summer dance. In between there’s a whole novel, and the arc is what happens in there.
Change comes in small steps (and sometimes backward)
Nobody drops a lifelong belief because someone argued with them once. It goes little by little, with evidence, doubts and relapses. A believable arc looks roughly like this:
- The lie works. At first, it’s useful. Mara locks up the library alone on the night of the dance and, in a way, she’s comfortable. Nobody can leave her out of a party she doesn’t go to.
- The lie gets tested. The plot forces her to do exactly what she avoids. To investigate, she has to talk to the hairdresser, the head of the festival committee, the twins who run the bar. She does it under the pretext of renewing their library cards, which is a very Mara way of getting close without getting close.
- First cracks. In “Upside Down,” halfway through the book, Alex believes her. For the first time, someone in town is on her side. It doesn’t change everything, but something shifts.
- The relapse. When she finds out Alex was hiding the arrest warrant, the lie comes back stronger than ever. “See? I’ll never be from here.” She packs her suitcase.
- The truth. Sitting in the dark library, she realizes nobody shut her out. She always left before anyone could invite her.
- The proof. She unpacks and organizes the dragon rescue with half the town. The change isn’t announced. It’s acted out.
The relapse is the piece people forget most, and the one doing the most work. It makes the final change cost something, and readers believe what costs something.
Mara’s arc, from the lie to the truth
- 1 Nothing to See Here (Yet)
- 2 Now for the Fun Part
- 3 Upside Down
- 4 Rock Bottom
- 5 Now It All Makes Sense
- 6 Happily Ever After (or Not)
How to skip the brain transplant
Give every step a cause. The arc moves because things happen in the plot, not because it’s time. Mara doesn’t soften because we’ve reached chapter 20. She softens because Alex believes her, because Bruno talks to her without suspicion, because Nuria invites her for coffee, her first invitation in a year.
Show it in a decision. A character who “realizes” something in a paragraph of inner thoughts is forgotten by the next page. One who unpacks a suitcase isn’t. Look for the gesture that proves they’re not who they used to be.
Make the first and last images mirror each other. Mara alone in the library, listening to the band. Mara dancing in the square a year later. Put those two scenes side by side and the arc explains itself.
Not everyone changes. Bruno is the same on the first page and the last, and that’s exactly why he’s useful: he’s the lighthouse Mara can measure her own distance against. Some characters don’t change themselves. They change everyone around them.
Arcs aren’t just for the protagonist. Alex starts out certain Mara is guilty and ends up on her side. His arc is shorter and simpler, but it’s there. And crossing it with Mara’s gives you plenty of scenes.
How much to plan
It depends on how you write. Some people need the whole arc before they start; others find it as they go. Both work. A reasonable middle ground: know the beginning, the end and the relapse. The steps in between can be jotted down along the way, and they often show up on their own once you’re writing the scenes around them.
For today
Pick your protagonist and write down where they are on the inside at three moments: the beginning, the midpoint and the end. One line each. If you have a minute left over, add the relapse.
In Sunday Plot, every character card in the Story bible has a “Their arc” section, with a space for each beat of your novel. Fill in only the ones you know; the empty ones don’t get in the way. And if the character shows up in several novels of a series, each book gets its own arc. Nobody in book two is exactly who they were in book one.