Echo/Pam Munoz Ryan/587 pgs.

Playing hide and seek, Otto finds himself alone in a forbidden forest. He stumbles upon three mysterious sisters who leave him with a prophecy,  a promise, and a harmonica. It's not an ordinary harmonica--it produces music no other harmonica can produce. Decades pass, and the harmonica finds its way into the hands of three very desperate people: Friedrich in Germany, Mike in Pennsylvania, and Ivy in California. This is a beautiful story of magic, fate, and how the lives of these three people are intertwined, and impacted by music--and one special harmonica. It's part fantasy, with a dose of historical fiction. Highly recommended!