I managed to track down two of her books for young people. The Two Worlds of Damyan (published by Atheneum in 1966) tells the story of a young student living in Kiev who uses the Dniepro River to practice swimming. In his dreams, he's swimming at the Olympics against the Americans. Considering this was written in '66 - this Soviet competition against the Americans would be strong.
The two worlds mentioned in the title are the Soviet world and the private family lives. In the Soviet world there is no religion and no Ukraine. In the private family world, they celebrate Christmas and also the dream of Ukrainian independence.
In Displaced Person (William Morrow, 1978) Bloch explores the confusion of a young boy - a Ukrainian refugee. He, along with the Ost workers - young people forced into labour by the Nazis - don't want to return to the Soviet homeland. The climax occurs when the Soviets and the Americans share and divide the many war refugees from eastern Europe. At one point, Bloch refers to the forced repatriation and massacre at Lienz, Austria in May of 1945.
It's an important book because it tells a true story about the casualties of war that has received little attention. Here's a quote:
"It would appear ever so neat and orderly - for only orderly wars are fought in history books - with dates fore and aft to box them nicely in. But everyone who had been there would know it all for a lie. Because the truth was anarchy and chaos, friends where enemies should be and enemies among one's own..." (page 103)
My only question is: why did it take me until 2012 to read these books? I hope they get reprinted, because interest in these issues is continuing to grow.