Joanna was clouded with worry as she paced the room. Her daughter was missing, of course she had good reasons to worry. Hayden, who sat on the sofa, doing his homework, often glanced at his mother. The fact that he was a kid didn't mean he didn't know what was happening? He had been used to seeing his sister everyday, but upto this moment, she hadn't come home. He missed her so much. Every time he asked about her whereabouts, he didn't get the answer he needed. He would often be told "she went on a business trip" or sometimes, his mother would dismiss off the question with another question. He didn't insist on it anymore, but his little heart was still troubled. 'Where are you, Siz? I miss you?' he thought.