On a special evening, Lena sat in her cozy room on the moon and made crafts with colorful paper. She loved creating creative things and today she had decided to make a special surprise for her older brother Nils. While she was concentrating, she suddenly noticed a soft glow under her bed. Curious, she crawled closer and discovered a small, shimmering box.

'What is that? ' , Lena whispered excitedly and pulled out the box carefully. It was made from a material she'd never seen before and felt warm. Mysterious symbols were engraved on the lid that seemed to dance in the moonlight. Lena tried to open the box, but it stayed locked.

At that moment, her brother Nils came in. He had just returned from his hike through the lunar forest. 'What did you find exciting there? ' , he asked with interest. Lena showed him the glowing box and together they examined it from all sides. 'Do you know what? ' , Nils said thoughtfully, 'It reminds me of an old lunar story. '

Nils told of a legend that special boxes were hidden on the moon that could only be opened by music. Lena, who not only loved to do crafts but also loved music, grew wide-eyed. 'Maybe we can sing a song together? ' , she suggested. Nils smiled and nodded in agreement.

They began to hum a simple melody that Lena had learned from her Mondoma. Nothing happened at first, but then the box began to vibrate softly. The symbols on the lid glowed more strongly, and with a soft click, the box opened as if by magic.

Inside, they found a small, crystalline star that shimmered in all colors of the rainbow. 'That's a friendship star! ' , Nils explained excitedly. 'It only glows when true friends are nearby. ' Lena carefully held the star in her hand, and it began to shine even brighter.

'Do you see? ' , said Nils gently, “The star shows that we are not only siblings but also best friends.” Lena was beaming with joy and hugged her brother firmly. They decided to keep the star in Lena's homemade treasure chest, where it would always remind them of that special moment.

In the following days, Lena and Nils made a nice holder for the Friendship Star together. They used moonflowers and sparkling stardust to decorate them. They told each other stories and sang their favorite songs. The mysterious box had brought them even closer together.

Every night before going to bed, they looked at the star, which always shone brightly when they were together. Lena learned that the most valuable treasures don't consist of gold or precious stones, but from the special moments you share with your loved ones. The mystery box had not only given her a magical star, but also taught an important lesson about true friendship.

And so the mysterious moon box became a very special treasure in Lena's life. It reminded them that the best adventures are often right in front of us and that they are best experienced together with the people you love. Lena and Nils shared many more adventures on the moon, but the story of the glowing box remained their favorite shared experience forever.