Although separated by continents and decades, Josef, a Jewish boy living in 1930s Nazi Germany; Isabel, a Cuban girl trying to escape the riots and unrest plaguing her country in 1994; and Mahmoud, a Syrian boy in 2015 whose homeland is torn apart by violence and destruction, embark on harrowing journeys in search of refuge, discovering shocking connections that tie their stories together.

"Hadi and Sama are a young Syrian couple in the throes of new love, building a life in the country that brought them together. They'd met in Cambridge, Massachusetts: he, a shell-shocked refugee of a bloody civil war; she, a passionate dreamer who'd come to America years earlier in search of new horizons. Now, they giddily await the birth of their son, a boy whose native language would be freedom and belonging. When Sama is five months pregnant, Hadi's...