"The Mystery of Arnold Hall" by Helen M. Persons is a mystery novel written in the early 20th century. The story revolves around Patricia Randall, a young girl who unexpectedly receives a substantial financial gift to attend Granard College, which sets off a chain of events both exciting and mysterious as she navigates her new college life. The opening of the book introduces Patricia at her home, where she finds out about a mysterious special delivery letter that contains a check for a thousand dollars intended for her education at Granard College. As Patricia shares this news with her family, her excitement is palpable, and they begin to discuss the implications of this unexpected gift. However, the identity of the benefactor becomes a topic of intrigue, leaving Patricia and her family curious. As Patricia prepares for her journey, the tone is set for a new chapter in her life filled with potential friendships, discoveries, and, undoubtedly, mysteries that await her at college. (This is an automatically generated summary.)