u003cbu003eAlien lunch ladies attack in the third book in this #1 u003ciu003eNew York Timesu003c/iu003e bestselling series by Dav Pilkey, the author and illustrator of Dog Man!u003c/bu003eu003cpu003eu003c/pu003eGeorge and Harold have played a trick or two on nearly everyone at Jerome Horwitz Elementary. When their latest prank causes the school's cranky cafeteria ladies to quit, Mr. Krupp hires a trio of unusual replacements -- who happen to look an awful lot like aliens! Will that curtain-caped crusader, Captain Underpants, save the day once more? Or will those outer-space cafeteria ladies have him for lunch?