M.C. Helldorfer has written numerous books for children and young adults. She lives in Baltimore with her husband, Bob, and her cat, Puck.
Yvonne Gilbert is a fine artist and illustrator who has created many covers and jackets for children's books, as well as greeting cards. She previously illustrated Per and the Dala Horse by Rebecca Hickbox (Doubleday). Yvonne Gilbert lives in Newcastle-Upon-Tyne, England.