Penrod by Booth Tarkington (published 1914)
Penrod Schofield is twelve and has been volunteered by his mother for “The Pageant of the Table Round” in which he is to play the Child Sir Lancelot du Lake. He gets himself into a mountain of trouble when he exchanges his gaudy costume of castoff silk stockings and flannel long-johns for the janitor’s overalls. This is one of those books which will cause you to lose your dignity and roll about the floor laughing hysterically.