Once And ThenIn Once, Felix escapes from an orphanage, only to learn that Poland is a dangerous place for a Jewish boy on his own. He manages to look after himself and another young orphan, Zelda, until they are taken under the protection of a kind Polish dentist. But when the Nazis uncover their hiding place, Felix and Zelda must once again run for their lives. In Then, Felix and Zelda have escaped from the Nazis, but how long can they survive when there are so