Harry and his dinosaurs love birthday parties, so Harry's disappointed when big sister, Sam, says she's going to one - alone. Not only is it Mr Oakley's birthday, but Harry finds out that it's the dinosaurs' one hundred millionth birthday too! Harry decides to throw a surprise birthday party and soon even Sam helps to make the party treats. Mum invites Mr Oakley over and he is very surprised when he arrives; in fact, everyone agrees that it's the best birthday party ever!
| ISBN: | 9780141500515 |
| Publication date: | 7th May 2009 |
| Author: | Ian Whybrow |
| Illustrator: | Adrian Reynolds |
| Publisher: | Puffin an imprint of Penguin Random House Children's UK |
| Format: | Paperback |
| Pagination: | 32 pages |
| Series: | Harry and the Dinosaurs |