As World War II rages on, fifteen-year-old Anna Teresa Martin is sent to her grandfather’s cattle ranch in Arizona for safety. But the sleepy town she expected is now a thriving supply depot and military training center. Eager to assist the war effort, Anna begins helping out around town.

Tensions rise when rumors spread that Nazi spies are trying to stop the town’s wartime production. With a saboteur in their midst, the townspeople begin turning on one another. When Anna’s friend is accused of being the culprit, Anna is determined to prove his innocence. With her friend’s trial looming closer and Nazi prisoners on the loose from the nearby prison camp, Anna will risk everything to help her new community and discover who the real spy is.

Characterized by exciting, fast-paced plots and age-appropriate themes, Harbor’s Hi-Lo books are both engaging and easy to read. Short chapters, simple sentence structures, and an accessible format make these books perfect for tween reluctant readers. Harbor books are written at a 2nd- to 3rd-grade reading level with an interest level of ages 10 and up.