Audio book Review: Echo by Pam Muñoz Ryan

Lost in the Black Forest, young Otto meets three sisters.  There, he hears of their unwritten story and the powerful magic behind a single harmonica.

Decades later, Fredrich lives in Germany with his father, uncle, and sister.  Hitler's reign is in full force, tearing this family apart. Fredrich fears for what Hitler's reign will do to those close to him, while his sister decides to do the unbelievable and vows her support to the Nazi movement. Fredrich's only solace his his music, for he has dreams of becoming a conductor.  Music moves something within his soul, something that must lay abandoned for fear of being transported off to a work camp.

Mike and his younger brother are orphans in Pennsylvania. With the orphanage filled to capacity, their fate is at risk.  They had hopes of being adopted together, into a family surrounded by music. They, too, cross paths with a harmonica, one that seemingly calls out to them, leading their fate.