This short YA memoir tells the story of Eva and her sister Miriam, twin girls that survived the nightmarish genetic testing of Dr. Mengele in WWII Auschwitz. I appreciated how the author took her story to the level of the readers, though some explanations of terms I felt were a bit unnecessary for most YA readers. I felt she underestimated their vocabulary at times (for instance, when defining the term "allies"), and the writing style felt like it was geared towards perhaps a bit younger group than the typical YA readers. This is a topic that I've done very little reading on, mostly because I tend to get very engrossed in the emotions of books, and so I tend to avoid topics which I know may drag me into feelings of depression or hopelessness. Most likely due to the author's incredible acceptance and ability to forgive her tormentors, as well as her child-like perspective and determination to save herself and her sister, I never felt that despair and helplessness. Instead, what stood out to me was the author's strength, courage, resourcefulness, and -- finally -- her amazing, compassionate gift of forgiveness. A great, short YA read that I'd highly recommend for those interested in learning more about the Nazi mistreatment of the Jews during WWII.