'Only three sleeps to go and then it's my birthday! There's a hippopotamus on our roof eating cake. It's his birthday, too. We are going to have our party together. A jungle party. And all our friends can come in animal costumes.' The hippo is back to celebrate his 30th birthday with a brand-new book! Join him and his friends for a jungle-inspired celebration full of games and lots of jungle-party treats! Download all the things you need for your very own Hippo birthday party here puffin.com.au/hippo