Saboteurs on the River

Saboteurs on the River by Mildred Wirt is an exciting mystery featuring the adventurous Penny Parker, a young reporter with a talent for solving complex puzzles. While spending time near the river, Penny becomes embroiled in a dangerous plot involving saboteurs who threaten the safety of the local community. As she investigates, Penny discovers a network of intrigue and deception that could have far-reaching consequences.