After being taught in a boarding school run by whites that Navajo is a useless language, Ned Begay and other Navajo men are recruited by the Marines to become Code Talkers, sending messages during World War II in their native tongue.
Guided by her Navajo ancestors, seventh-grader Nizhoni Begay discovers she is descended from a holy woman and destined to become a monsterslayer, starting with the evil businessman who kidnapped her father. Includes glossary of Navajo terms.