Danger on Martin Mountain

Catherine L. Osornio

$16.99

Paperback

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English

Miscellaneous
01 November 2025

Historical fiction (Children's&YA)

Series: Harbor Set 4

In this high-interest accessible novel for middle-grade readers, a fifteen-year-old girl whose friend is accused of sabotaging the World War II wartime effort in her Arizona community must face escaped Nazi prisoners and unmask Nazi spies to prove her friend's innocence.

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.

AUTHOR: Catherine L. Osornio has been writing for children since 2003. She lives with her family in Southern California. When not writing, Catherine likes to read children's books, draw cartoons, hike, and work in her garden. Visit her at catherineosornio.com.

By: Catherine L. Osornio
Imprint: Miscellaneous
Country of Publication: United States
Dimensions: Height: 191mm, Width: 133mm,
Weight: 154g
ISBN: 9781631639371
ISBN 10: 1631639374
Series: Harbor Set 4
Pages: 160
Publication Date: 01 November 2025
Recommended Age: From 7 to 9 years
Audience: Children/juvenile , English as a second language
Format: Paperback
Publisher's Status: Unspecified

Catherine L. Osornio has been writing for children since 2003. She lives with her family in Southern California. When not writing, Catherine likes to read children’s books, draw cartoons, hike, and work in her garden. Visit her at catherineosornio.com.