Once upon a time there was a girl called Millie and she had a special case with special things inside. It had a padlock on it and a key. The key was kept in Millie’s jewllery box. Only her sister didn’t know where it was but she didn’t give up trying to find it! One day Millie arrived home from the beach. She had a pebble in her hand ready to put in her box. Her box was filled with special little things that reminds her of those days out. When she stood on her bed to get the key. When she picked up her case it felt extremely light however, when she opened it, it was empty. What a surprise! “It’s time to solve a mystery!” Thought Millie.