In the little town of Vellin, where the rooftops leaned close together like old friends sharing secrets, there was an alley called Mossbell Lane.

It was the oldest alley in town.

No one knew exactly how old it was.

The baker said it had been there before his grandmother learned to knead bread. The librarian said it appeared on the very first map, drawn as a thin crooked line between the clock tower and the river wall. Mr. Umit, who swept leaves outside his tiny tea shop, said Mossbell Lane had probably been there before the first brick was ever baked.

But most people did not notice it very much.

It was narrow, cool, and quiet. It had no fancy shops, no bright signs, and no wide road for carts. One wall was made of warm red bricks, patched here and there with stones of different colors. The other wall was pale gray, with tiny ferns growing from its cracks. Above, washing lines stretched from window to window, holding striped socks, little shirts, and, sometimes, a blue scarf that belonged to someone who always forgot to bring it inside.

At the far end of Mossbell Lane stood a round wooden door. Nobody used it anymore.

And beneath that door lived a small tabby cat named Sora.

Sora had white paws, a cinnamon-colored nose, and green eyes that seemed to grow bigger whenever she found something interesting. She was curious about everything.

She was curious about why rain smelled different on stone than it did on soil.

She was curious about why some people sang while they worked and others hummed.

She was curious about the moon, especially when it looked like a bright slice of pear in the sky.

And she was deeply, wonderfully curious about Mossbell Lane.

Every morning, Sora slipped through a loose board beneath the old door and walked slowly along the alley. She sniffed the walls, peered into cracks, watched beetles hurry beneath fallen leaves, and listened to the pigeons muttering on the chimney pots.

One spring morning, after a soft rain, Sora noticed something she had never seen before.

A line of tiny muddy pawprints crossed the alley.

They began near a dripping flowerpot and went all the way to a puddle shining beside the brick wall.

Sora placed one white paw beside the prints.

They were not hers.

They were too round.

“Who walked here?” she wondered.

She followed them carefully.

The tiny tracks looped around a cracked blue tile, passed beneath a rusty drainpipe, and ended at the puddle. On its surface floated three yellow petals.

Sora bent down. In the puddle, she saw not only her own upside-down face, but a fuzzy brown shape tucked under the steps nearby.

“Aha,” said Sora.

Out came a little hedgehog named Niko, wearing a leaf on one spine like a small green hat.

“You made these pawprints,” said Sora.

Niko wiggled his nose. “I did. The garden behind the tea shop was wet, and I was looking for snails.”

“Do you always walk through this alley?”

“Every spring,” said Niko. “The puddles are best here.”

“Only in spring?”

Niko looked surprised. “Of course. In summer, the puddles dry up. In autumn, the alley fills with leaves. In winter, it makes little ice ponds.”

Sora sat very still.

Then she looked again at the muddy pawprints and the puddle.

“Does the alley change with every season?”

Niko blinked. “Doesn’t everything?”

That was an excellent question.

Sora spent the rest of spring watching Mossbell Lane more closely than ever. She noticed that when the rain came, dark water ran down the old walls in twisting paths. It gathered in dips between the cobblestones and made shiny puddles.

Birds hopped through them, leaving sharp three-toed marks.

Niko the hedgehog left soft, round prints.

The neighbor’s fluffy dog, Boru, left enormous splashes and wobbly paw marks.

And Sora herself left neat white-pawed tracks that faded as the stones dried.

One rainy afternoon, Sora found Mrs. Asha, the town painter, standing in the alley with a big umbrella and a sketchbook.

Mrs. Asha was painting the wet bricks.

“They look redder in the rain,” Sora observed.

“They do,” said Mrs. Asha. “Rain wakes up colors that sunshine sometimes hides.”

Sora looked at the wall. The bricks were russet, berry-red, orange, and brown. Green moss pressed between them like a soft fringe.

“Do you paint the alley often?” asked Sora.

“Every year,” said Mrs. Asha. “But it never looks the same twice.”

That evening, Sora curled up under the old wooden door, thinking about pawprints, puddles, and colors waking in the rain.

Mossbell Lane was not just an alley.

It was changing all the time.

Then summer came.

The days grew warm and golden. The puddles disappeared, leaving pale rings on the stones. The moss became dry at the edges. The alley smelled of warm brick, dusty lavender, and bread cooling in the bakery window nearby.

At first, Sora was disappointed.

“No puddles,” she sighed.

But then she saw new things.

A trail of silvery snail slime curved across the stones at dawn.

Tiny black ants marched in a line, carrying crumbs larger than their heads.

At noon, the shadows of the washing lines made long stripes across the alley. As the sun moved, the stripes moved too, crawling slowly over the walls and stones.

Sora began to visit at different times of day.

In the morning, Mossbell Lane was blue and quiet, with dew shining on the ferns.

At noon, it was bright and hot, and lizards warmed themselves on the sunniest stones.

In the evening, it turned purple and gold, and the old windows glowed like lanterns.

One particularly warm day, Sora discovered a painted mark beneath a low window.

It was a pawprint.

Not a real muddy pawprint. This one was painted in faded blue.

Sora sniffed it.

It smelled only of old wall.

She found another, almost hidden by a flower box. This one was orange. Then a green one near the drainpipe. Then a small yellow one at the corner.

Sora raced to Mrs. Asha’s shop.

“Who painted pawprints in Mossbell Lane?” she asked.

Mrs. Asha smiled and put down her brush.

“Ah. You found them.”

“Were they made by cats?”

“Some were,” said Mrs. Asha. “Some were dogs, birds, and children’s hands shaped like paws. Long ago, people painted them during the Summer Street Festival. Each one showed where an animal or a person had splashed through a puddle in spring.”

Sora’s tail curled in amazement.

“So the alley keeps spring even after summer comes?”

“In its own way,” said Mrs. Asha.

Sora hurried back to Mossbell Lane. The faded painted prints no longer seemed like plain spots of color. They were tiny memories, resting on the wall while the real puddles were gone.

She imagined cats she had never met, trotting across wet stones years and years ago.

She imagined children laughing, dipping their hands in paint, and pressing them to the wall.

She imagined a brown dog shaking rain from his ears.

The alley was remembering.

By autumn, the town’s trees had turned copper, gold, and red.

Wind carried leaves into Mossbell Lane, where they gathered in whirling piles. Some leaves were as big as Sora’s face. Others were small and pointed, like little fox ears.

Every day brought more.

They slid along the cobbles.

They spun around drainpipes.

They gathered in corners, covering the old painted pawprints and the pale rings where summer puddles had dried.

Sora worried.

“Oh no,” she said. “The alley is forgetting.”

Just then, Mr. Umit arrived with his wide broom.

Swish, swish, swish went the broom.

He gently swept leaves into tidy piles, but he did not sweep every leaf away. He left a golden heap beneath the old wooden door, and another beneath the ferny wall.

“Why leave those?” Sora asked.

“For small creatures,” Mr. Umit replied. “And for the alley.”

“The alley likes leaves?”

“Every old place likes to wear the season for a while.”

Sora thought about that.

Perhaps the leaves were not hiding the alley’s memories.

Perhaps they were adding new ones.

That night, rain fell hard and quick. The leaves became wet and shiny. Sora watched from beneath the door as puddles formed again, but this time they were filled with floating autumn colors.

In the morning, she padded through one shallow puddle, then across a smooth stone.

Her white paw left a dark print.

Behind her came Niko, who had grown rounder for winter. His small tracks crossed hers.

Then Boru the dog charged in after a walk, scattering droplets everywhere. His giant paws left splashy marks beside the little ones.

Sora looked at the tracks overlapping.

Spring’s tiny hedgehog prints.

Summer’s painted memories.

Autumn’s wet leaves and fresh pawprints.

Mossbell Lane was not forgetting at all.

It was writing.

Winter arrived softly one morning, with a sky the color of milk and a hush over the rooftops.

The town woke to frost.

The cobblestones in Mossbell Lane sparkled silver. The puddles had frozen into clear, smooth pools. Inside them were trapped brown leaves, little twigs, and one bright yellow petal that had somehow lasted from autumn.

Sora stepped onto the frozen edge of a puddle.

Crick.

She jumped back.

Then she leaned close.

Under the ice, she saw a faint muddy pawprint, pressed into the stone before the water froze.

It might have been Niko’s.

It might have been hers.

It might even have belonged to a cat from long ago.

Sora felt a strange, cozy feeling in her chest. Mossbell Lane was quiet in winter, but it was still full of stories.

That afternoon, snow began to fall.

At first, just a few flakes drifted down between the rooftops. Then more came, soft and feathery, settling on the old door, the window ledges, and the ferny wall.

Soon the alley was covered in a clean white blanket.

Sora made the first tracks.

Step. Step. Step.

Her paws pressed little flower-shaped prints into the snow.

Then came a robin, hopping in a delicate line.

Then Boru, who made deep round holes as he carefully walked through the quiet alley.

Then Niko, who had come out for only a moment to see the snow, leaving a dotted trail before hurrying back to his warm leafy nest.

By evening, Mossbell Lane was covered with tracks.

Big, small, quick, slow, straight, curly, and wandering.

Sora sat on the old doorstep as moonlight shone over them.

She understood at last.

The oldest alley in town was not old because its bricks were old, though they were.

It was old because it held so many seasons.

Rain had painted it with puddles.

Sunshine had painted it with shadows.

Autumn had painted it with leaves.

Snow had painted it with tracks.

Animals, people, wind, water, and time had all added something.

And Sora, with her curious green eyes and white paws, had added something too.

The next spring, when the first warm rain fell, Sora went to Mossbell Lane before anyone else.

A new puddle shimmered near the brick wall.

She stepped into it.

Plip.

Then she stepped out.

On the wet cobblestones, she left a fresh little trail of pawprints.

Sora looked back at them, then ahead at the crooked old alley shining in the rain.

“Good morning,” she whispered to Mossbell Lane.

The puddle trembled gently.

Above her, a blue scarf fluttered on a washing line.

Somewhere, a kettle began to sing.

And beneath the soft patter of rain, it almost sounded as though the oldest alley in town whispered back,

“Good morning, Sora. What shall we discover today?”