Agnès Mathieu-Daudé was born in 1975 in Montpellier. After studying literature and history, she became a heritage curator. She writes novels for adults ( A Chilean sailor  and  L'ombre sur la lune ) and stories for everyone, which are illustrated by terribly talented people. She lives and works in Paris, with her children and a rabbit who devours her books.

Illustrator Olivier Tallec may be most well-known in the United States for his offbeat and fun picture books Who Done It? And Who Was That? He was born in Brittany, France. After graduating from the Ecole Supérieure des Arts Appliqués in Paris, he worked in advertising as a graphic designer, after which he devoted himself to illustration. Since then, he has done numerous illustrations for newspapers and magazines and has illustrated over 60 books for children.