The Campfire Girls of Roselawn: Or, a Strange Message from the Air

The Campfire Girls of Roselawn, written by Margaret Penrose and first published in 1920, follows friends Jessie Norwood and Amy Drew as they explore the emerging world of radio technology. Their adventures take a turn when they hear a mysterious voice calling for help, leading them to uncover a kidnapping plot involving a girl who is a key witness in a legal case. This juvenile fiction novel combines elements of mystery, friendship, and social responsibility, highlighting the girls' courage and their efforts to support a local charity through a concert.