Anne and Lizzy Rockwell have collaborated on all the Mrs. Madoff books, including St. Patrick's Day and Presidents' Day, and Who Lives in an Alligator Hole? in the Let's-Read-and-Find-Out Science series. Anne is the author of What's So Bad About Gasoline?; Brendan and Belinda and the Slam Dunk!; Why Are the Ice Caps Melting?; and Only Passing Through: The Story of Sojourner Truth. Lizzy is the author-illustrator of Good Enough to Eat; The Busy Body Book; and Hello Baby! Both Anne and Lizzy live in Connecticut.