That morning the sky was a clean, bright blue, and a warm little sun heated the garden. Ziggy, Lily, Skye, and Dash were playing with colorful paper pinwheels. Ziggy held a yellow one and ran back and forth to make it spin faster and faster.

"Look!" said Ziggy, laughing. "If I run fast, my pinwheel spins super fast!"

Lily blew on hers with all the breath she had. Skye, calm and quiet, watched her pinwheel move just a little, with a sweet smile. Dash, on the other hand, was doing somersaults on the grass, and Ziggy's four cats watched him curiously. There was Sofia, the loving little black cat, Dora, the brave tabby, and the two brothers Poldo and Milo. Poldo, fat and chunky, yawned in the sun. Milo, tall and nimble, jumped in the air to catch the leaves.

Then, all of a sudden, they heard a familiar sound.

"CHOOOO! CHOOOO!"

From behind the hedge popped out Toby the Magic Train, all shiny and smiling. The children ran to him, hopping with joy.

Toby opened his little doors and said:

"Choo choo, children, what a day!
Hop aboard, we're on our way!
I'll take you where sweet colors gleam,
where a cheeky wind hides a shiny dream!"

The children clapped their hands. They all climbed onto the train, and the four cats found a cozy little spot too. The train set off among the clouds.

And what clouds! White clouds shaped like animals floated in the sky. One looked like a rabbit with long ears, another like a cat with a curly tail.

"Look, a bunny cloud!" cried Skye, with wide-open eyes.

When Toby stopped, the children got off and stood with their mouths open. They had arrived at the Market of a Thousand Smells.

It was an open-air market, full of colorful stalls. There was the smell of warm bread, of sweet fruit, of fresh flowers. The happy voices of the sellers mixed together like a song. And over everything blew a playful wind, a cheeky little breeze that ruffled hair and made the leaves fly.

The wind also played a funny trick: it tore the price tags off the stalls and made them twirl in the air like paper butterflies.

"My price tag!" a lady laughed.

"My apples cost... um, the number flew away!" joked a fruit seller.

The children laughed and ran to catch the tags and give them back. Milo, the jumping cat, caught one in midair with a super high leap. Everyone clapped.

But while they played, Ziggy noticed something. In a corner of the market, a little hidden, there was a very quiet stall. Nobody stopped there. Behind the counter stood a man with an apron, looking down at the ground. His stall smelled of mint and cinnamon, and it was full of little bags of seeds and colorful spices.

"Who is that man?" asked Ziggy.

Nobody knew. Ziggy walked up softly.

"Hi, I'm Ziggy. What's your name?"

The man lifted his head, surprised. "My name is Berto," he said in a low voice. "I'm new here. I sell seeds and spices, but nobody ever comes to see me. It's as if I were invisible."

Ziggy looked at the other stalls, full of people and laughter. Then he looked at Berto, all alone in his corner. He felt a little squeeze in his heart.

Just at that moment, on the edge of Berto's counter, Ziggy saw something moving slowly. It was a snail. But not just any snail: it had a shiny shell and left behind a trail that sparkled. It smelled of mint, just like Berto's spices.

"Good morning, little one," said the snail, in a calm and wise voice, like a grandpa's. "I know every stall in this market. And I also know the secret to getting wherever you want to go."

"What's the secret?" asked Ziggy, curious.

"Perseverance," answered the snail.

Ziggy scrunched up his forehead. "Perse... what? What does that mean?"

The snail smiled. "Perseverance means never giving up. Keeping on trying, even when it's hard, even when you're slow like me. I am very, very slow, and yet I always get where I want to go. Do you know why? Because I never stop."

"Ah!" said Ziggy, with shining eyes. "So perseverance is when you try and try again until you make it!"

"Exactly," said the snail. Then it looked at the sky. "Today the wind is strong. Very strong. I wonder what a clever child could do with all this wind."

Ziggy stayed and thought. The wind kept blowing, making the ribbons rustle and a little far-off bell tinkle. And all of a sudden, a little light lit up in Ziggy's eyes.

"Aha! I have an idea!" he shouted, jumping in the air. "The wind doesn't have to be a nuisance. The wind can become music! We can build a big whistle that sings when the wind blows, and hang it above Berto's stall. Then everyone will come to listen!"

Lily, Skye, and Dash came running right away.

"I'm in!" said Lily, sure of herself.

"What a lovely idea!" said Skye sweetly.

"Let's make the most beautiful whistle in the world!" shouted Dash, jumping up.

Berto watched them, speechless.

The children got to work. In the market there were lots of old things to recycle, that is, to use again instead of throwing them away. They gathered empty plastic bottles, colorful caps, straws, and ribbons left here and there. Ziggy explained to everyone how to do it: the bottles became tubes that whistle, the hanging caps jingled, the straws were little flutes, and the ribbons danced in the wind.

Dora, the brave cat, carried the caps in her mouth. Sofia purred next to Skye to give her courage. Poldo, on the other hand, had sat right on top of a pile of ribbons, and nobody could move him.

"Poldo, we need those ribbons!" laughed Ziggy. The big cat got up with a lazy meow, and everyone burst out laughing.

They tied everything to a big wooden hoop. It became an enormous wind chime, full of colors.

Now they had to hang it up high, above Berto's stall. Ziggy took a sturdy wooden crate and climbed on top of it. He had to keep his balance and stretch up to the hook.

"Careful, Ziggy!" said Lily, holding the crate still with both hands.

Ziggy stood on his tiptoes. The wind pushed hard and made the wind chime sway this way and that. Ziggy stretched out his arms, reached as far as he could, and with a big effort hooked the wind chime onto the highest hook.

"Done!" he exclaimed, jumping down.

Everyone looked up, holding their breath. The wind blew, but the wind chime stayed silent. Not a single sound came out. Only silence.

The caps didn't jingle. The bottles didn't whistle. Nothing at all.

Dash scratched his head. "Aww. It doesn't work."

Skye lowered her eyes. Berto sighed softly, as if to say: "I knew it, nobody will ever notice me."

Ziggy felt his heart beat fast. For a moment he wanted to give up. But then he remembered the snail's words.

"Perseverance," he whispered to himself. "You mustn't give up. You have to try again!"

Ziggy looked carefully. He looked at the wind chime, he looked at the wind, he looked at the ribbons all bending the same way. And he understood something: the wind chime was turned the wrong way! The wind hit it from the side and couldn't get inside the bottles. He had to turn it, face it into the wind, with the opening toward the breeze.

"I've got it!" he shouted. "It has to be turned the other way! Quick!"

Ziggy climbed back on the crate in a flash. The wind pushed harder and harder, as if to be mean. Ziggy grabbed the wind chime and began to turn it. It turned, it turned, but the wind pushed it back. Milo jumped onto an awning and helped push with his little paw. Lily held the crate with all her might. Dash ran to grab a stick to help Ziggy reach higher.

With one last effort, Ziggy turned the wind chime into the wind.

And then the magic happened. The wind went inside the bottles and out came a sweet and cheerful melody. Fweee, fweee, ding ding ding! The straws whistled, the caps jingled, the ribbons danced in the air like a rainbow. It was the most beautiful music in the market!

People stopped all at once. "What is that sound?" "Where is that music coming from?"

And everyone, little by little, came over to Berto's corner. Children, moms, dads, sellers. The quiet, forgotten corner had become the most cheerful and crowded corner of the Market of a Thousand Smells!

Berto couldn't believe it. His eyes were shiny, but with happiness. "Thank you," he said to the children. "You've given me the greatest gift. I don't feel invisible anymore."

Then he ran behind the counter and grabbed four little bags of fragrant seeds. "Take these, they're for you! It's my thank you."

Ziggy smiled and shook his head. "There's no need, Berto. We didn't do it to get something back. We did it because now we're friends, and seeing you happy is enough for us."

Skye nodded. "True kindness asks for nothing in return."

Berto smiled, touched. In the end the children took the seeds anyway, but only to remember that special day, and they promised Berto they would come back to visit him.

The wise snail, from the edge of the counter, smiled softly. "Well done, Ziggy. You had perseverance. You didn't give up, and you did it."

The sun was beginning to go down and the sky turned pink. Once again they heard the familiar sound.

"CHOOOO! CHOOOO!"

Toby the Magic Train had come back to take them home. The children said goodbye to Berto and climbed aboard, a little tired but happy. Behind them, the wind chime kept on singing in the wind.

When everyone was aboard, Toby said:

"Choo choo, we're heading home today,
with kindness dancing on our way!
Who helps a friend and never asks a thing,
gets the brightest joy a heart can sing!"

The children fell asleep one after another, rocked by the train. Skye dozed off first. And in their dreams the music of the wind kept playing, sweet and light.