Kate Hannigan is the author of numerous children's books, including the middle-grade series The League of Secret Heroes , as well as the middle-grade novel The Detective's Assistant , which won the Golden Kite Award for best middle-grade fiction. Her debut picture book, A Lady Has the Floor: Belva Lockwood Speaks Out for Women's Rights , received four starred reviews, and was praised as "excellent" by Kirkus Reviews . Her other titles include a graphic novel, History Comics: The Great Chicago Fire , as well as the chapter book series Cupcake Cousins. Kate lives with her family in Chicago. Zachariah OHora is the prolific illustrator of the New York Times bestseller Wolfie the Bunny , which received four starred reviews and was praised by the Chicago Tribune as "pitch-perfect." He is also the author-illustrator of Stop Snoring Bernard! , which won the 2011 Society of Illustrators Founders Award and was the 2012 State of PA Dept of Ed One book, as well as Not Fits Nilson! , which received the PALA Carolyn W. Field Award, and was named the Huffington Post Best Children's Book of the Year, as well as a Kirkus Best Picture Book of the Year and a New York Public Library Book for Reading and Sharing. Zachariah's other titles include My Cousin Momo! , The Teacher's Pet , The Not So Quiet Library , and Niblet & Ralph .

He lives in Narberth, PA, with his family.