Michael Buckley is the author of the New York Times bestselling series Sisters Grimm and N.E.R.D.S., as well as several other successful children's books. Finn Buckley is 10 years old, and this book is his first. Father and son live in Brooklyn, New York. Catherine Meurisse is a Paris-based illustrator, cartoonist, and comicbook artist. A survivor of the Charlie Hebdo attack, she has illustrated over 20 adult and children's books. This is her first book in English.