Oxford Read and Imagine 6 Invisible

Oxford Read and Imagine is a fiction series written for primary and pre-primary students. Young learners follow Rosie, Ben and Grandpa on their adventures and grow up with the characters as they read and learn. 'I'm the greatest criminal in this city. I've never been caught by the police, and I never will be caught,' said Cooger. But what was this clever DS and dangerous DS man planning? And could Ben and Rosie stop him from stealing Grandpa's inventions DS and a lot more, too?