How high is the sky?

Pipkin is a very small penguin who is always asking very big questions... but what he wants to know most of all is... How high is the sky? Pipkin and his friends fly in a hot-air balloon, journey in a space rocket and even walk on the moon as they try to figure out exactly how high the sky is.

Will they ever know for sure? A sweet and beautifully illustrated story book which will give small children lots to talk about.