The cockerel crowed across Pettington Zoo. The animals woke with a big job to do. 'The Harry is coming! Today is the day! We have to get ready! There's no time to play!' It's Harry's birthday and the all the animals at Pettington Zoo are planning a big surprise. It's time to get ready to party! Written by comedian Sam Smith and illustrated by Daron Parton, this is a heartwarming and hilarious book so full of laughs that you may just be crying by the end.