Blast off on the biggest micro-adventure yet with the popular Project X characters Max, Cat, Ant and Tiger and their new robot micro-friend, Eight. Carefully levelled and highly motivating, this book is ideal for independent reading. The micro-friends have to make an emergency landing on Planet Grenin to try and find some lintum a crystal that makes the ship's computer function. However, its not going to be that easy as they find the planet is overrun by some fearsome red rats called Rolians. Max, Cat, Ant, Tiger and Eight come up with a plan to help the Grenians (a peaceful race of green rats who live on the planet) get rid of the invaders. This book also contains notes on the inside front and back covers that highlight challenge words, prompt questions and give a follow-up activity to support children in their reading and comprehension skills.