When a yak comes to stay, Zak's animal family do their best to make the visitor happy—but this yak does not know how to behave.
About the Author
Justine Smith was born in Africa, but now she lives in Wimbledon. Unlike Zak, however, she does not have a friendly hippo to do her housework.
Clare Elsom is an exciting and talented illustrator, scribbling away in south west London.