Mary McNeil is an acquisitions editor for Cook Communications Ministries. She has been acquiring, editing, and developing children's books for almost five years. Rocket Readers are her first published works. She lives in Colorado Springs with her four children. Heather Gemmen is a children's author, public speaker, and senior editor with Cook Communications Ministries. She is the author of the Tough Stuff for Kids series. She lives in Colorado Springs with her husband Steve and their four children.