Something Is Wrong

"Hey, Violet, you broke my wristwatch, yet you don't allow me to talk?" Tim felt sorry about his wristwatch. He frowned and looked very angry. Anne didn't pay attention to him. She opened the broken wristwatch and carefully searched for the things inside. Seeing her focused look, Tim stared at her with curiosity instead of shouting and wanted to know what she was doing. When Anne found what she wanted, a smile appeared on her lips. She put down her backpack and took out a bottle of water from it. She opened the lid and poured some water into it. Then she handed the bottle to Tim. "Take it!" Tim frowned out of habit. She and Justin both liked to order him to do things! However, he chose to listen to her as he saw her confident look. Anne put the part she found from the watch into the lid. The small, long part immediately floated on the surface of the water. After spinning for a while, it stopped. Anne grinned happily. Tim widened his eyes as he watched. Why did she laugh? What was that?