Aaradhya and Shreya were best friends who loved solving mysteries. One day, while exploring the old attic in Aaradhya's house, they stumbled upon a hidden compartment in an antique chest. Inside, they found a sparkling ruby necklace, but it was missing a precious gem.

"Who do you think this necklace belongs to?" Shreya asked, her eyes wide with excitement.

Aaradhya examined the necklace carefully. "I'm not sure, but we need to find out what happened to the missing jewel. Let's start investigating!"

The two friends began searching the attic, looking for any clues that could help them solve the mystery. They found a faded letter hidden behind a stack of old books, which hinted that the necklace had been in the family for generations.

As they continued their search, they discovered a small, locked box in the corner of the attic. "I wonder what's inside," Shreya said, her curiosity piqued.

After some careful maneuvering, the girls were able to open the box. Inside, they found a single, glittering ruby that perfectly matched the missing jewel from the necklace.