Elys Dolan makes picture-books about everything from seagull detectives to capitalist bunny rabbits and weasels plotting world domination. She was shortlisted for the Waterstones Children's Book Prize for Weasels and the Branford Boase for Knighthood for Beginners, and won the inaugural STEAM Children's Book Prize for How the Borks Became and the prestigious Lollies Prize for Mr Bunny's Chocolate Factory. Museum Mystery is the third book in Elys' series about Rex, Dinosaur in Disguise. She is also a lecturer on the MA in Children’s Book Illustration at the Cambridge School of Art. Elys lives in Cambridge.