Sharon Garlough Brown is a spiritual director, retreat leader, and author of the bestselling Sensible Shoes series of spiritual formation novels, including An Extra Mile, which was named Christianity Today's 2019 Fiction Book of the Year. A graduate of Princeton Theological Seminary, Sharon and her husband, Jack, have served congregations in the United States and United Kingdom and now live in Scotland.

Jessica Linn Evans is an author-illustrator whose books reinforce wonder for creation, inspire adventure and invention, and encourage loyalty and friendship with the lovely. She is the author and illustrator of Penguin Sets Sail and the illustrator of Little Mouse Finds A Friend, Waiting Through Winter, and Solar the Polar. Jessica lives in the beautiful state of Idaho with her husband and three of her four wonderful children.