It was a sunny and nice afternoon, and Kathy was walking her little dog, Summer at the park. At that moment, there weren’t many people around. She stopped for a while, sat down, and gave Summer a cookie. She was drinking water when she saw another girl not far from her. Kathy realized that the other girl looked exactly like her. She was paralyzed for a moment, but then she stood up and started walking towards the girl. Suddenly, Summer barked at a cat, and Kathy got distracted. After Summer calmed down, Kathy noticed that the other girl was gone. She looked for her for a while, but her twin sister had disappeared and she never saw her again.