As World War I rages in Europe, an influenza epidemic devastates Boston, forcing fourteen-year-old Hannah to leave home. Dangerously ill, she finds herself in Vermont, where a German man takes her in and nurses her back to health. Relying on her vision of an angel to help her find her way home, Hannah is eventually reunited with her family. A mysterious element, daunting situations, and tenacious characters make this novel a rich and compelling read.