Determined to unlock the box, Tom searched everywhere in the dusty attic. He peeked under old books, rummaged through dusty drawers, and even checked his grandmother's old coat pockets. "Where could that key be?" he sighed. Feeling disappointed, he went downstairs, and his grandmother noticed his sad face. "What's wrong, dear?" she asked gently. Tom told her about the locked box, and she smiled, reaching into her necklace. Hanging there was a small, golden key! "This belonged to your grandfather," she said, handing it to him. Excited, Tom rushed back up to the attic and unlocked the box. Inside, he found old letters, photos, and a small pocket watch—a treasure of memories! From that day on, Tom learned that sometimes, the real treasure is the stories of the past.