Elizabeth Shreeve is the author of several books for young readers, including the chapter book series the Adventures of Hector Fuller and two picture books, Captain Freddy Counts Down to School, illustrated by Joey Chou, and Oliver at the Window, illustrated by Candace Hartsough McDonald. Frann Preston-Gannon is an award-winning illustrator and designer. She was nominated for the Kate Greenaway Award in 2020 for her work on the best-selling I Am the Seed That Grew the Tree (Nosy Crow) and has also been shortlisted for the Waterstones Children's Prize. She was the first UK recipient of the Sendak Fellowship, allowing her to spend a month living with and learning from Maurice Sendak. Her work has been published around the world.

Where did life on Earth come from? Out of the blue! Discover the story of life on Earth, and how it evolved from tiny cells in vast oceans into the huge variety of creatures that covered our prehistoric planet. Find out why creatures first emerged from the sea and brought life onto land, in a lively and engaging journey through millions of years of fishes, giant reptiles and mammals. With illustrations from the award-winning Frann Preston-Gannon, this is a gorgeous introduction to the amazing story of prehistoric life.