This is an amazing flap book packed with inventions, machines, gadgets and devices, and facts and information about how they work. Over 90 flaps reveal the insides of car engines, toilets, escalators, submarines and microwaves and many, many other machines. It includes internet links to websites with animations, games and experiments.

 

This book is part of a book series called See Inside .

There are 16 pages in this book. This book was published 2009 by Usborne Publishing Ltd .

The Unknown Adventurer is still believed to be at large in the wild.