It’s going to be a busy day on the building site. Digger needs to dig a hole so the foundations can be laid. There's earth to dig up and rubble to clear. Things are looking good - then there's an emergency phone call. Digger needs to attend a rescue, but will he arrive in time to be a hero?

It's time to get busy with machines that roar, whizz, vroom, and zoom! The stories feature a popular vehicle as the central character, and involve a group of animal characters in a supporting role. A detailed spread on different parts of the vehicle will help children understand what makes up the machines and will help familiarize them with vehicle vocabulary.

Mandy Archer is an experienced children's writer who has a proven track record of producing engaging and educational fiction titles for all ages. She has previously worked for BBC Worldwide as Creative Head of Children's Books. Mandy currently lives in south England.