Let the laughter rip with all four Doctor Proctor’s Fart Powder books from <I>New York Times </I>bestselling author Jo Nesbø. This collectible boxed set includes a whoopee cushion!<BR><BR>Join Dr. Proctor, Nilly, and Lisa as they have a ton of fart-tastic fun—with the help of Dr. Proctor’s magical fart powder, of course!<BR><BR>This rip-tootin’ boxed set comes complete with a whoopee cushion for bonus blasts of laughs, and includes all four books in the series: <I>Doctor Proctor’s Fart Powder</I>, <I>Bubble in the Bathtub</I>, and <I>Who Cut the Cheese?</I>, and <I>The Magical Fruit</I>.