Lost in the Desert. Level 4

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. The van is broken, Grandpa is sick, there's something wrong with Clunk - and Rosie, Ben, and Max are lost in a desert! It's hot in the day and cold at night, and they don't have a lot of water. Can they find help?