"Dorothy Dale's School Rivals" by Margaret Penrose is a novel likely written in the early 20th century. The story centers around Dorothy Dale, a vivacious girl returning to Glenwood School, and her interactions with friends and rivals as they navigate the trials of school life. The narrative hints at themes of friendship, competition, and personal growth, emblematic of the schoolgirl genre popular during that time. At the start of the narrative, Dorothy and her lively friend Tavia are on a train journey back to Glenwood School but soon face chaos when the train halts due to a broken bridge. Amid the moments of tension, a young man on the train, who is later revealed to be Mr. Armstrong, assists with an injured classmate. Tavia's impulsive nature shines through as she suggests an audacious plan to leave the train and walk to their destination, highlighting both her adventurous spirit and a growing sense of camaraderie among the girls. As the girls finally arrive at Glenwood, they are met with social dynamics that will challenge Dorothy, including the rivalry with the newcomer Jean Faval, setting the stage for the unfolding drama and friendships at school. (This is an automatically generated summary.)