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.