Tosia has always enjoyed discovering mysteries. One rainy afternoon, she was looking through an old drawer in her grandfather's room. Suddenly, she came across a small gold watch. When she touched the hand, the watch ticked quietly and coloured lights started flashing all around her! Tosia glanced around. Her room had disappeared and she was standing in the middle of a huge meadow full of dinosaurs! One of the dinosaurs was just coming towards her. Tosia felt a slight tickle in her stomach - was the dinosaur friendly, or did it want to play with her? Then the watch started to glow blue again....