Alex's mum was tired and over-worked. Holding down a full-time job, keeping the house clean and looking after the children - the youngest of which was still a handful with his ADHD as they tried to get the medication right - she just wanted a break. Even if it were only for an afternoon - so she sent Alex to the shopping mall, with his younger brother who was throwing a tantrum because he wanted to go to the toy store to spend his pocket money. She never once thought Alex would lose his younger brother in the crowds.