Growing up on the Wirral and in Germany, Anna wrote plays about talking animals, and stories about naughty children, and drew on every available surface.

After school, she did an Art Foundation course, then a degree in German Literature & Philosophy at Oxford University. In 1998 she found her perfect job at Usborne in London, writing about everything from curious penguins to trips to the Moon.,

Rob Lloyd Jones never wanted to be a writer when he grew up he wanted to be Indiana Jones. So he studied Egyptology and archaeology, and went on expeditions to strange places.

But all he found were interesting stories, so he decided to write them down.

Jake Atlas and the Tomb of the Emerald Snake is his third novel for Walker, although he's written about thirty other books for children, including historical non-fiction and adaptations of such classics as Jekyll and Hyde.

Rob lives in East Sussex with his wife and two young sons.

Rosie Dickins grew up in England and Hong Kong. An avid reader, she always loved dreaming up her own stories. After studying literature at Oxford University, art in Paris and plenty of travelling, she settled in London, where she works for Usborne Publishing. She has written over a hundred children's books, from award-winning information books to fiction.

John Joven is a graphic designer and children's book illustrator from Colombia. He started drawing and painting at an early age (mainly big robots). When he's not illustrating, John enjoys spending time with his family and a very lazy pug.