챕 3The Singing Crystal Cave

They landed on a planet covered in soft pink sand. The ground sparkled like it had tiny stars inside. Astra used her fan button to blow away some dust. Behind a rock, they found a dark cave. Inside, the walls glowed with bright crystals. When Astra touched one, it sang a soft, happy tune. Princess Lyra gasped. 'These crystals are magical!' she said. They ran deeper into the cave, touching more crystals that sang different songs. The music filled the cave with joy and light.

Suddenly, a big crystal on the wall began to glow very brightly. It hummed louder and louder. Astra and Princess Lyra froze in surprise. The ground shook a little. Then, the crystal opened, revealing a hidden door. Astra’s eyes sparkled. 'We found a secret place!' she said. Princess Lyra held her hand out. 'Let’s go inside and see what’s waiting for us.' They stepped through the door, the singing crystals behind them fading into gentle echoes.