When Germany invaded Poland, bombers devastated Warsaw and the city's zoo along with it. With most of their animals dead, zookeepers Jan and Antonina Zabinski began smuggling Jews into empty cages. Another dozen "guests" hid inside the Zabinskis' villa, emerging after dark for dinner, socializing, and, during rare moments of calm, piano concerts. Jan, active in the Polish resistance, kept ammunition buried in the elephant enclosure and stashed explosives in the animal hospital. Meanwhile, Antonina kept her unusual household afloat, caring for both its human and its animal inhabitants otters, a badger, hyena pups, lynxes. With animal names for the "guests", and human names for the animals, itś no wonder that the zooś code name became "The House Under a Crazy Star." Using Antonina's diaries, other contemporary sources and her own research in Poland, Ackerman takes us into the Warsaw ghetto and the 1943 Jewish uprising and also describes the Poles' revolt against the Nazi occupiers in 1944. She introduces us to such varied figures as Lutz Heck, the duplicitous head of the Berlin zoo; Rabbi Kalonymus Kalman Shapira, spiritual head of the ghetto; and the leaders of Zegota, the Polish organization that rescued Jews. Ackerman reveals other rescuers, like Dr. Mada Walter, who helped many Jews pass, giving lessons on how to appear Aryan and not attract notice. This suspenseful beautifully crafted story deserves a wide readership.