When Niko’s great-aunt Amaya went away to live by the sea, she left him a key made of blue glass.

It was not a very big key, but it shone like a piece of sky caught in a bottle.

Attached to it was a tag that said:

For the shop on Sparrow Lane.
Do not sweep away the dust under the back table.
And never tell an idea it is silly.

Niko read the note three times.

Then he walked to Sparrow Lane, where the houses leaned close together as if they were telling secrets. At the very end stood a narrow little shop with a green door, a crooked chimney, and a faded sign that read:

AMAYA’S NEXT STEP SHOP

The windows were foggy. A fern sat in one window, though it looked rather thirsty. Inside, the shelves were nearly empty.

There was one brass bell on the counter.

One tiny teacup with a painted fox on it.

One ladder that was much too tall for the room.

And, under the back table, a round gray lump of dust that gave a tiny snore.

Niko froze.

The dust lump opened two button-bright eyes.

“Good morning,” it said. “Are you the new keeper?”

“I suppose so,” Niko replied.

“Splendid,” said the dust lump. “I am Momo, assistant to the assistant. Aunt Amaya said you would come.”

“What does this shop sell?” Niko asked.

Momo blinked. “Nothing at all.”

Niko looked around. “Then why is it called a shop?”

“Because people bring things here,” said Momo. “Not coins. Not buttons. Not jars of jam. They bring unfinished ideas.”

“Unfinished ideas?”

Momo pointed to a small wooden box on the counter. Inside it lay a paper airplane with only one wing.

“A child wanted to fly it over the rooftops,” Momo explained, “but could not decide what its other wing should be made of.”

He pointed to a jar holding three purple beans.

“Someone hoped to grow a garden that sang at sunrise. They did not know what song the flowers should sing.”

Then Momo pointed to a small silver spoon that trembled whenever anyone looked at it.

“A baker wished to invent moonlight soup,” he whispered. “But he had no idea what moonlight tastes like.”

Niko touched the blue-glass key in his pocket.

“What am I supposed to do?”

“Help each idea find its next step,” said Momo.

“That sounds hard.”

“Sometimes it is,” Momo agreed. “But the best next steps are often very small.”

The brass bell rang.

Ting!

The green door creaked open, and in came a girl wearing muddy boots and a yellow raincoat. Her hair was tied in two puffed bunches, and she clutched something under her chin.

“Hello,” she said softly. “My name is Safiya.”

“What have you brought?” Niko asked.

Safiya opened her hands.

In them was a little wooden boat, no longer than Niko’s thumb. It had a red sail, a tiny anchor, and a painted blue stripe. But there was no name on its side.

“I began making a boat for the river race,” Safiya said. “I wanted it to be the fastest boat in the whole town. But then I wondered where it was going. And if it did not have somewhere to go, would it even want to race?”

Her eyes grew shiny.

“I could not think of a name. So I stopped.”

Niko looked at the boat. It was beautiful. He wanted to say, “Call it Swiftwing!” or “The Red Rocket!”

But he remembered Aunt Amaya’s note.

Never tell an idea it is silly.

And then he remembered Momo’s words.

The next step.

“What does your boat like?” Niko asked.

Safiya blinked. “Like?”

“Yes,” said Niko. “If it could choose. Would it like racing past bridges? Exploring caves? Carrying letters? Following ducks?”

Safiya thought.

Outside, rain began tapping the shop window.

“My boat,” she said slowly, “would like to find things that are lost.”

“Then perhaps,” said Niko, “you do not need its whole name yet. Maybe you only need to find the first lost thing.”

Safiya’s face brightened just a little.

At that very moment, something bumped against the bottom of the green door.

Thump.

Then again.

Thump thump.

Niko opened the door.

A folded paper map, soaked by the rain, slid inside. It had blown all the way from the town square. Most of the ink had run, but one sentence could still be read:

THE STAR COMPASS HAS GONE MISSING.

Below the words was a drawing of the old clock tower.

Safiya held up her little boat.

“A lost thing,” she whispered.

Momo rolled out from beneath the table, leaving a soft dusty trail behind him.

“Oh dear,” he said. “The Star Compass is missing?”

“What is that?” Niko asked.

“The compass that sits at the top of the clock tower,” said Momo. “It points not north, south, east, or west. It points toward the thing you most need to find.”

“And it is gone?” Safiya asked.

“If it is not back by moonrise,” Momo said, “the town’s Lantern Parade will not know where to go. Every year, the parade follows the Star Compass through the dark streets.”

Niko looked at the wet map. He looked at Safiya’s boat.

“I think,” he said, “we should help.”

They hurried through the rainy town, with Momo riding in Niko’s coat pocket. Sparrow Lane opened into the market square, where striped awnings snapped in the wind.

At the foot of the clock tower stood Mr. Kaito, the clockmaker. His glasses were dotted with rain.

“The compass was here this morning,” he said, pointing to an empty metal stand high above. “Then a gust of wind rattled the tower windows. I heard a clatter. When I climbed up, it was gone.”

“Did you see where it went?” Niko asked.

Mr. Kaito shook his head. “Only this.”

He gave Niko a little silver feather.

“It was caught on the railing.”

Safiya examined it. “A bird?”

“Perhaps,” said Niko.

Momo poked his head out of Niko’s pocket. “Not an ordinary bird. This feather belongs to a silver swift. They nest in the hills beyond the river.”

“The river!” Safiya cried.

She held her boat close.

Niko understood. “We need to launch it.”

“But it has no name,” Safiya said.

“It has a job,” Niko told her. “It is going to help us find something lost.”

Safiya smiled.

They raced to the riverbank. The rain had softened into a mist, and the river ran smooth and dark between willow trees. Niko found an old plank, a piece of string, and a round blue button near the water.

Together, they tied the string to the boat’s anchor and used the plank to gently push it into the current.

Safiya leaned down.

“You can be called… Finder,” she told the boat.

The little red sail puffed out at once.

Finder bobbed forward, then turned in a curious circle.

“There!” cried Momo.

The boat was pointing toward a narrow stream that slipped away beneath a stone bridge.

Niko and Safiya followed the stream, splashing through tall wet grass. The town grew small behind them. Soon they reached the edge of the Whispering Hills, where gray rocks stood like giant sleeping animals.

A silver swift swooped overhead.

Then another.

Then twenty.

Their wings flashed in the cloudy evening light.

“Look!” Safiya whispered.

On the side of a hill was a small dark opening, half hidden by ferns. The silver swifts flew in and out of it.

Niko’s stomach fluttered. The cave looked deep.

“We should go back,” he said, though he did not move.

Momo climbed onto his shoulder.

“Being brave does not always mean going fast,” said Momo. “Sometimes it means taking the next step while your knees are still wobbly.”

So Niko took one step.

Safiya took one too.

Inside, the cave was cool and glittery. Tiny crystals shone along the walls. They walked farther in, following the faint silver feathers scattered on the ground.

At the end of the cave, they found a nest built from twigs, ribbons, shiny pebbles, and bits of colored glass.

In the middle of it sat the Star Compass.

Beside it was a young silver swift with one bent wing.

The bird gave a worried chirp.

“It did not steal the compass,” Safiya said gently. “It found it.”

The compass gave off a soft blue glow, lighting the nest.

Niko looked closer. The swift’s wing was tangled in a long thread of golden kite string.

“It cannot fly properly,” he said.

Carefully, very carefully, Niko loosened the string while Safiya spoke to the bird in a quiet voice. It took a long time. The swift trembled. Once, it pecked Niko’s finger, but he did not pull away.

At last, the last loop slipped free.

The young bird stretched its wing.

Then it flapped.

A breeze stirred through the cave.

The silver swift lifted into the air, circling happily beneath the crystal ceiling. The other swifts sang bright, ringing notes.

Then the young bird swooped down and nudged the Star Compass with its beak.

The compass spun.

Its silver needle turned toward Safiya’s little boat, floating in a puddle near the cave entrance.

Safiya laughed.

“I think it likes Finder.”

Together, Niko and Safiya carried the Star Compass back to town. By the time they reached the clock tower, the rain had stopped. The clouds were opening, and the first stars were beginning to shine.

Mr. Kaito climbed the tower steps and placed the compass back on its stand.

It glowed brighter than before.

Soon people gathered with paper lanterns shaped like pears, dragons, moons, cats, ships, and stars. The Lantern Parade began.

The Star Compass needle pointed down the streets, then across the bridge, then all the way to Sparrow Lane.

At the front of the parade floated Finder, Safiya’s little wooden boat, placed in a clear bowl of water on a small wagon. Its red sail fluttered proudly.

When Niko returned to the shop, he found a new sign hanging beside the door.

It read:

NIKO’S NEXT STEP SHOP
IDEAS WELCOME
PAYMENT: ONE BRAVE TRY

Momo had painted it while they were gone, though some of the letters were upside down.

Inside, the nearly empty shelves did not seem empty anymore.

They seemed ready.

Ready for one-winged airplanes.

Ready for singing gardens.

Ready for moonlight soup.

And ready for every child, baker, builder, dreamer, and explorer who had an idea that had stopped halfway and needed someone to say:

“That is a wonderful beginning.

Now, what might the next step be?”