I really like the series of Mortimer Keene books by Tim Healey and Chris Mould. They are quite short stories and easy to read.
Mortimer Keene is 8 years old and he makes lots of different machines. In the latest book he makes a time travel machine and he takes it to school. He tells his friends that it can travel to any place in time.
But disaster strikes when a ball rolls into the time machine and hits the button. The whole school including his friends and teachers are taken back to the time when Dinosaurs lived and it's up to Mortimer Keene to get them back home safely.
• Buy this book at the Guardian Bookshop.
Want to tell the world about a book you've read? Join the site and send us your review!
