KIEV, Ukraine — They were an American family who came to Kiev to adopt four children, all Ukrainian. As fate would have it, they arrived on the doorstep of revolution.

After a period of stress and uncertainty, David Bundy is back in the U.S. with three newly adopted children — Karina, 14; Max, 11; Alla, 9. But his wife Lisa has remained behind to finish securing the fourth child they wish to bring home to Montgomery, Ala.

She is sheltering in a missionary home outside Kiev to ensure Nastia makes it out, too. At 16, she is the fourth and oldest of the children they came to adopt.

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“We had our court date for Nastia the day the fighting broke out,” said Lisa, speaking by phone from Ukraine, regarding the decree hearing for the adoption on Feb. 18. It was a day Kiev protests turned newly and acutely violent, leaving more than a dozen dead. Since then, armed protesters and government forces have clashed in battle, costing nearly 100 civilian lives in the process.

The scenario reaches back to November 2013, when protests erupted over President Viktor Yanukovych’s nixing of a trade deal with the EU.

On Feb. 18, the Bundys stayed at a rented apartment some four blocks from Independence Square, epicenter of the surging conflict. The apartment became a hideout for the new family. The children either slept together in a loft or downstairs with their parents, who ventured outside alone only to retrieve bread and other essentials.

The backdrop to their isolation: the sound of “bombs, gunfire and fireworks,” The backdrop to their