In the warm and shiny little town of Casillas, with hills all around and lemon trees reaching out to the sun, lived a brave 5-year-old boy named Javier. He had a big smile and curly hair that shone golden in the sunlight. Every morning, he would put on his favorite T-shirt, the one with a spider on it, because he loved superheroes—Spider-Man was his favorite.

One sunny afternoon, while playing soccer with his cousin Iker in the quiet streets, Javier kicked the ball hard, and it flew into an old shed. The boys ran after it and stumbled upon a dusty old chest. Inside, they found something shiny—a spider-shaped pin that glimmered like a tiny star. Javier pinned it onto his shirt, and to their surprise, he transformed into SpiderJavier!

Suddenly, the ground shook, and they heard loud 'thump-thump' sounds. Oh no! Dinosaurs had come to Casillas! But not scary ones—they were lost and needed help. SpiderJavier knew this was his chance to be a real hero. With Iker cheering him on, he bravely approached the dinosaurs to listen to their story.

The dinosaurs were looking for their home; they missed it very much. Javier's mom and dad, Mamen and Javier, came to see what was happening. They were worried at first but soon saw that SpiderJavier had everything under control. They told him to always listen and be careful as he led the dinosaurs back to where they belong.

As the little superhero marched through the lemon groves, leading his giant new friends, everyone in town cheered for him. Iker ran ahead to make sure the path was safe. They had to obey the road signs and help each other to make sure they all got back safely. The dinosaurs told stories of their old home, which sounded like a place full of wonders.

After a long journey, they came upon a hidden valley, where the air smelled sweeter and the skies were a special shade of blue. It was the dinosaurs' home! They were so happy that they gave SpiderJavier and Iker a shiny stone each to remember this magical day. The boys promised to always remember the importance of obeying and helping others.

Back at home, as the stars began to twinkle in the night sky, SpiderJavier turned back into regular little Javier. He put the magical pin and the shiny stone beside the deer horns he had found once—his treasures. Snuggled in bed, his mom and dad kissed him goodnight. They were so proud of their brave boy, who understood that being a hero means caring for others and following rules.