When twins Pearl and Stasha entered Auschwitz, they are "lucky" enough to be selected by Joseph Mengele to be members of his elite group of pets. While this status comes with some privileges, every day brings new horrors as well. Where once they were like two halves of the same soul, life in the concentration camp seems determined to chip away at this bond until the girls can barely hang on to the thin thread of hope that they still grasp. When they are separated, the pain is almost unbearable, but their dual quest for reunion and vengeance might just be enough to see them through. 
 Konar provides many moments of bittersweet lyricism in her writing, even if the latter half of the book loses a bit in the twisted Hansel and Gretel style nature of the girls journey back to each other. While a bit uneven, and relying on many coincidences to resolve loose ends, this is still a powerful novel about a horrifying time in world history. 
 This ARC was obtained at BEA16, in exchange for an honest review.