Author: Gwinn, Saskia

Interest age: from c 9 years

Published on 29 October 2026 by Post Wave Publishing UK Ltd (Post Wave Children's Books) in the United Kingdom. Hardback | 64 pages, Created and coloured digitally 272 x 216 x 14 | 508g

Meet Theia – a small planet with a big destiny. She didn’t just crash into Earth… she changed it forever!Travel back 4.5 billion years, when Theia slammed into young Earth. From that colossal crash, the Moon was born. Earth began to wobble… and the seasons came to life.

This hilarious, science-packed com-book adventure is perfect for curious, fact-loving readers ages 7–9.