How Deep Is the Sea - Picture Books Author:Anna Milbourne This is a magical picture book following the latest adventure of Pipkin, the little penguin with big ideas. Pipkin the penguin is always asking questions like 'How Big is a Million?' and 'How High is the Sky?' Now, he has a new question: 'How Deep is the Sea?' A special fold-out poster at the end of the book shows Pipkin diving into the sea, sho... more »wing what can be found at the different depths. it is gorgeously illustrated by Serena Riglietti.« less