A whizz-bang epic adventure of action, laughter and secret plots - and the extraordinary friendship between a little boy and a huge gorilla that just might save the day…

It is 1940 and Britain is at war with Nazi Germany. Eleven-year-old Eric spends his days at the place that makes him most happy: London Zoo. And there's one animal he loves: Gertrude the gorilla.

With bombs falling all over London, Eric must rescue Gertrude. Together with his Uncle Sid, a keeper at the zoo, the three go on the run. But while hiding out at the seaside they uncover a top-secret Nazi plot…

Go back in time with No.1 bestselling author, David Walliams, on this action-packed, laugh-out-loud adventure for all the family!

 Product Information: 
• ISBN:  9780008471804
• Author:  David Walliams
• Publisher:  HarperCollins Publishers
• Format:  Paperback
• Pages:  475
• Dimensions:  19.8 x 12.9 x 3.5 cm