In a seaside town in France, there lived a curious little boy named Pierre. Pierre was extremely fond of the sea. He often listened to the old fishermen tell wonderful stories about the deep sea. One day, he picked up a strange seashell on the beach. There were some mysterious patterns on the seashell, like a map. Looking at the patterns on the seashell, Pierre was full of longing for the depths of the sea.
Pierre took his diving gear and slowly dived into the sea following the guidance of the seashell map. The seawater was clear and cool. All kinds of small fish swam past him, and the colorful corals swayed gently with the ocean current. He dived deeper and deeper, and the light became darker and darker, but his curiosity grew stronger and stronger. Suddenly, he saw a faint light in the distance, as if calling him.
Pierre swam vigorously towards that light. When he got closer, he found that it was a huge cluster of light, and there seemed to be something hidden in it. He carefully reached out to touch the light cluster, and suddenly it dispersed, and a huge and magnificent underwater castle appeared in front of him. The walls of the castle were inlaid with all kinds of pearls and gems, emitting a charming light.
Pierre swam to the gate of the castle. The gate was very tall and engraved with exquisite patterns, including seahorses, dolphins and mermaids. He gently pushed the gate, and it slowly opened. He swam in with a nervous and excited mood. There were many strange rooms in the castle, and different marine creatures shuttled through each room.
As Pierre swam around the castle, he found a special room. The room was filled with gold, silver and treasures and all kinds of mysterious magic items. But Pierre was not bewitched by these treasures. He was more interested in the secrets behind the castle. He continued to explore, wanting to find more stories about the castle.
Just then, a small guardian spirit appeared in front of him. The guardian spirit was emitting a soft blue light all over. It looked at Pierre as if it was judging whether he was a friendly visitor. Pierre smiled and greeted the spirit. The spirit felt his kindness and began to tell him the origin of the castle. It turned out that this castle was built by the sea goddess a long, long time ago to protect the secrets of the ocean.
After hearing the spirit's story, Pierre knew it was time for him to leave. He said goodbye to the spirit and then slowly swam out of the castle. He looked back at the mysterious underwater castle, full of reluctance in his heart, but he also knew that he would cherish this secret in his heart forever. When he surfaced, the sun was almost setting. He returned to the town with full of memories.
