Signal in the Dark
Author: first_name: Mildred A. Wirt
last_name: Benson
Language: English

During a school break, Penny convinces her father to give her a job as a reporter at the Riverview Star. She deals with a jealous co-worker and gets her first big story covering an explosion at the Conway Steel Plant. While helping a fellow reporter who is down on his luck, Penny uncovers a scheme to sell a fake explosive device and exposes the culprits!