This is a unique work. It is one of the first books written for young readers describing the early days of the event that has since come to be known as the Holocaust. Originally written in Yiddish in 1938, it is one of the most accomplished works of children's literature in this language. It is also the only book for young readers by Glatshteyn, a major American Yiddish poet, novelist, and essayist.

Written in the form of a suspense novel, Emil and Karl draws readers into the dilemmas faced by two young boys--one Jewish, the other not--when they suddenly find themselves without families or homes in Vienna on the eve of World War II. Because the book was written before World War II, and before the full revelations of the Third Reich's persecution of Jews and other civilians, it offers a fascinating look at life during this period and the moral challenges people faced under Nazism. It is also a taut, gripping, page-turner of the first order.