Diana has a problem! Pet day is coming to school and she needs a super, awesome animal to win. She asks her mum if she can have a pony. "Certainly not," says Mum. "We haven't enough grass on the lawn!" Then she asks her dad if she can get a goat. "Certainly not!" says Dad. "A goat would eat all the washing on the line!" Things are looking glum until Diana and her brother find some very large, extremely odd-looking eggs at the edge of the lake. Has Diana solved her pet crisis or just made things a whole lot worse?