Mark Dubowski is the author of the Step into Reading book Ice Mummy: The Discovery of a 5,000-Year-Old Man. He lives in Raleigh, North Carolina. Bryn Barnard is the award-winning illustrator of numerous children's books, as well as the author-illustrator of Dangerous Planet: Natural Disasters That Changed History and Outbreak: Plagues That Changed History. He lives in Friday Harbor, Washington. You can find out more about him at his Web site, www.brynbarnard.com.