It is the summer holiday for Matthew and Polly. Matthew's mum is tidying up Matthew's bedroom when she finds some strange art work. Matthew admits painting these but in the eyes of Chocky. Matthew is miserable as Chocky has deserted him for his holiday. They meet up with Colin and his family. The children are playing near the river when a boat breaks free and starts to drift downstream. Emma screams which alerts Polly and Matthew. The jetty is destroyed by the impact and Polly and Matthew fall into the water.