The Lost Lost-And-Found Case: A Quix Book (Hardcover) (ISBN-13: 9781534480001)

Paul DuBois Jacobs and Jennifer Swender are a husband and wife writing team, authors of many books for children, including the Animal Inn series, Count on the Subway, My Subway Ride, and My Taxi Ride. Paul has also cowritten four books with legendary folk musician, Pete Seeger, including Abiyoyo Returns and The Deaf Musicians. Paul and Jennifer have appeared at Lincoln Center, the Children's Museum of Manhattan, Brooklyn Botanic Garden, the Virginia Festival of the Book, as well as countless schools, libraries, and museums. They live in Massachusetts.

Karl West is a freelance illustrator, doodler, and full-time coffee drinker. He produces both traditional and digital work from his studio in Dorset, England.