W. C. Bauers grew up in Alaska and Colorado, and his writing background includes two speculative novels and the Tiny Bible Tales board-book series. Bauers lives in the Rocky Mountains with a knitting maven, three padawan martial artists, and the best rescue in the world. www.wcbauers.com

Marta Costa was born in Barcelona and studied graphic design in the ELISAVA School of Barcelona. In 2005, she started her own company for design, serigraphy, and the commercialization of T-shirts and other products for children. Since 2007, she has worked as a freelance illustrator, working mostly for publishing companies in Spain. Most recently, she has illustrated Noah's Ark for Penguin Young Readers.