Project X CODE: White Book Band, Oxford Level 10: Sky Bubble: Return to Micro World

Project X CODE is a book-by-book series built for struggling readers aged 6 and above.
Welcome to Micro World, invented by Macro Marvel - an amazing theme park where you have to shrink to get in! Disaster struck when CODE, the computer that controlled the park and the robots inside, went wrong and started shrinking everyone. A year later, with the park about to relaunch, things go wrong again! Team X must return to help Mini Marvel with another mission - to avoid the malfunctioning BITEs, reset the zones, and find the park's new engineer Ace!
In this book, Team X return to Micro World to help Mini and Macro Marvel, and find the park in chaos!