Once upon a time, there was a little mouse named Tomás who lived in a hole in the ground. One day, while searching for food, he found a treasure map. The map showed a faraway island where it was said that a hidden treasure was waiting.

Tomás decided that he had to find that treasure. So, bravely, he embarked on a dangerous journey to the island. During his journey, he encountered many dangers, like storms, sharks, and pirates. But Tomás didn't give up. He kept going, knowing that the treasure was worth it.

Finally, after many exciting adventures, Tomás arrived at the island. There, he found the treasure hidden in a cave. It was a shiny and beautiful treasure, filled with gold and jewels.

Tomás was very happy to have found the treasure. But he also realized that the most important thing wasn't the treasure itself, but the adventure he had experienced to find it. He had learned a lot about himself and the world around him.