In 1886, 11-year-old Mihaela embarks on a journey from Croatia to the Keweenaw Peninsula, also known as Michigan's Copper Country. Mihaela's papa had made the trip two years beforehand in order to work the copper mines so that he could send money back home, but a painful eye disease has left him vulnerable in a new land and in need of the skills of his wife, an expert healer. And so Mihaela, her mother, and two younger brothers leave their family farm in Croatia for what they assume will be a brief visit to America, only to find themselves faced with a great many challenges and a stay that will not be temporary after all.