Aron, the narrator, is an engaging if peculiar young boy whose family is driven from the countryside into the Warsaw Ghetto. As his family is slowly stripped away from him, Aron and a handful of boys and girls risk their lives, smuggling and trading things through the "quarantine walls" to keep their people alive, hunted all the while by blackmailers and by Jewish, Polish, and German police (not to mention the Gestapo). Eventually Aron is "rescued" by Janusz Korczak, a Jewish-Polish doctor and advocate of children's rights famous throughout prewar Europe who, once the Nazis swept in, was put in charge of the ghetto orphanage. In the end, of course, he and his staff and all the children are put on a train to Treblinka, but has Aron managed to escape, to spread word about the atrocities, as Korczak hoped he would?