Hooray, hooray, it's Saturday! When her little sister, Clemmie, refuses to go out in the rain, Matilda sets out to teach her all the delights of a wet Saturday. But after her enthusiasm leads her to make a big mistake, it's Matilda who will end up learning an unforgettable lesson. The world-renowned cartoonist Liniers gives us a funny and sweet portrait of his daughters that is sure to become every beginning reader's favorite story.