“Beaty’s Questioneers series introduces children to real science, with characters who are curious about how the world works. Ada Twist is an aspiring scientist who conducts experiments and reads facts to find out the answers to her questions. Her friends are Iggy, architect-to-be, and Rosie, a budding engineer. In this story, wondering why her mother’s hot coffee smells stronger than her father’s iced coffee leads Ada to discoveries about how gases and molecules move when heated. This, along with investigating how forces operate, enables her to rescue her Uncle Ned when he drifts away in his helium-filled trousers. <i>The story, and Roberts’s stylish and comic illustrations, add fun and laughter to the acquisition of knowledge. Rarely is fiction so informative</i>.”

- Sunday Times Culture Magazine,