Barb Rosenstock is the author of the Caldecott Honor Book The Noisy Paint Box, Vincent Can't Sleep, Through the Window, and Mornings with Monet, as well as many other books. Her most recent book, Mystery of the Monarchs, is a 2023 NCTE Orbis Pictus Recommended Title and a Junior Library Guild Selection. She lives outside of Chicago with her husband, sons, and two big poodles. Barb has always lived near the Great Lakes, and wrote this book to satisfy her lifelong curiosity in their formation.