Freeman, Martha: - Martha Freeman worked as a reporter and teacher before becoming a full-time writer of books for young readers, including the Edgar Award­-nominated Zap!, Born Curious, The Secret Cookie Club series, Who Stole Halloween?, and Effie Starr Zook Has One More Question, which School Library Journal called "accessible and exciting" in a starred review. She also collaborated with NASA astronaut Mark Kelly on the Astrotwins books. Martha lives in Colorado. Learn more at MarthaFreeman.com.