Jonny Marx lives in London, where he works as a children's book editor and author. From a compendium of mythical monsters and a chronology of prehistoric creatures, to books about crime capers, lost unicorns, incredible human beings and humankind, Jonny has worked on more than 60 titles (and counting!). Kathryn Selbert is a children's author and illustrator with a BFA in Illustration from the Rhode Island School of Design. She currently lives in Connecticut, USA, with her French bulldog, Margot.