Mildred and her friends try to join Ethel's Cauldron Club, but Mildred fails the initiation test after interference from Ethel. Luckily for Mildred, Fenella & Griselda, come to the rescue and create the Dangerous Old Books Society! Soon the stuffy old club begins to lose its luster & it's members! Meanwhile Miss Drill contemplates quitting after growing tired of Miss Hardbroom's harassment.