The acclaimed creator of THE RAINBOW FISH series returns with Bertie, an irrepressible hippo who’s not quite ready for bed. Bertie might wear his daddy out before he’s actually ready for sleep.

• ISBN: 9780735823143
• Published: 2010 , North South Books
• Themes: Bedtime, Hippopotamus, parents, Sleep, Spanish edition
• Descriptors: Europe, Picture Book, Primary (ages 6-9), Switzerland
• No. of pages: 32