Arnold seeks out his favorite author who turns out to be quite opposite of her sweet and sentimental books. / A rich kid joins Arnold's class. Arnold and the gang tell him what life in the big city is really like.
Crabby Author: Arnold is eager to do a book report, and decides to do it on his favorite author, Agatha Caulfield, who turns out to be the opposite of who Arnold thought she was. Rich Kid: A serious, rich kid named Lorenzo joins P.S. 118's 4th grade class, so Arnold and the other kids try to teach him not to worry about his schedules and appointments so much, and just have fun.