"1942. Hannah Martel has narrowly escaped Nazi Germany. When her ship bound for America is turned away at port, she has nowhere to go but to her cousin Lily in Brussels. Fearful for her life, Hannah is desperate to get out of occupied Europe. But with no safe way to leave, she must return to the dangerous underground work she thought she had left behind. Seeking help, Hannah joins the Sapphire Line, a secret resistance network. But when a grave mistake...

"As German stukas circle in British skies, bombing London in repeated air raids, famous violinist Elisa Lindheim Murphy and her journalist husband, John, make an agonizing decision to send their three children to safety in America. But what about all the Jewish refugees left behind in England? Elisa will face the greatest trial of her life as she travels with evacuee children on seas made treacherous by Nazi u-boats."--Publisher's description.

In the early 1990s, a boy with a mysterious past and the woman who cares for him endure a five-year journey across the war-torn Caucasus and Europe, weathering hardships and welcoming unforgettable encounters with other refugees searching for a better life.