A picture book presentation of the life of Beatrice Shilling, a woman whose ingenuity, persistence, and mechanical expertise helped Britain win World War II.

Mara Rockliff is the author of many books for children, including the Orbis Pictus Honor Book Mesmerized and Anything But Ordinary Addie, both illustrated by Iacapo Bruno; Around America to Win the Vote, illustrated by Hadley Hooper; Doctor Esperanto and the Language of Hope, illustrated by Zosia Dzierzawska; Jefferson Measures a Moose, illustrated by S. D. Schindler; Chik Chak Shabbat, illustrated by Kyrsten Brooker; and Me and Momma and Big John, illustrated by William Low, a Charlotte Zolotow Honor Book and Golden Kite Award winner. She lives in Lancaster, Pennsylvania, with her family.

Daniel Duncan is the author-illustrator of the picture book South and the illustrator of Mr. Posey's New Glasses by Ted Kooser and The Purple Puffy Coat by Maribeth Boelts, among other books for children. Daniel Duncan lives outside London.