They Went Left by Monica Hesse

Zofia Lederman has spent months in a hospital trying to get well after the Allieds liberated her camp and now must find any way possible to find her young brother, the only family she has remaining. She relies on the kindness of a Russian soldier who is in love with her but then realizes that she is the only one who can retrace their steps and find Abek. Zofia's mental health makes her an unreliable narrator but you can feel the desperation and anguish she feels as she is powerless to locate Abek. She is suffering, as is most of the survivors at refugee camps, from PTSD and her health is fragile. The language, adult situations and violence of the camps make this intended for young adults but readers will appreciate her honesty and lack of sugar coating the horrific events of war. This is a story of the best and the worst of humanity told by a young survivor just trying for any remnant of her prior life.