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.

Alan Marks began his career illustrating for magazines and newspapers. His first children's book Storm, written by Kevin Crossley Holland, won the Carnegie Medal. Alan now illustrates a wide variety of subjects, from nursery rhymes to war poetry. He is the illustrator of the Boston Globe-Horn Book Award Honor Book A Mother’s Journey, Behold the Beautiful Dung Beetle, Planet Zoo, The Spirit of the Forest, and more. Alan lives in an old house in the Kent countryside with his wife and two daughters.