Once


 * Once ** ** Morris Gleitzman **
 * Felix and Zelda Series **

Once is the story of Felix, a ten-year-old Jewish orphan who escapes from a Polish orphanage to track down his parents. As he moves from the countryside into the Nazi-occupied urban streets he begins to realise that Jewish people are no longer welcome. After discovering a young girl, Zelda, in the burnt out ruins of a farm, Felix takes it upon himself to protect her and forms an unlikely friendship that takes them on a dangerous journey together. Author's website