One summer, during the dark days of World War II, eleven-year-old Antonio becomes a traquero. He works alongside his father, grandfather, and other Mexican and Mexican American men building and repairing the railroad tracks that run across America. Antonio meets Luis, a fellow traquero not much older than himself who traveled from Mexico to work on the tracks. Alone and a long way from home, Luis is grateful to find a friend in Antonio. Suspecting there are hidden treasures stashed away in a secret location, the two boys become sleuths and set out to uncover them. What they discover turns out to be far more valuable than gold or precious gems.

Adventures in History™, brings to life some of the most compelling and intriguing events in history as seen through the eyes of the young protagonists who are a central part of each dramatic tale. Readers will enjoy the twists and turns in this historical fiction series as they discover what it was like to live through world-changing events and unbelievable circumstances. These stories come to you courtesy of known and award-winning children’s authors.

Cross Curriculum Connections for the Free Library outlines how these books can be used alongside the Core Knowledge Sequence as well as the corresponding curriculum materials.