Patricia Posner’su biografía, The Pharmacist of Auschwitz, tells the little-known story of a Bayer pharmaceutical salesman from Romania who became the chief pharmacist at the largest Nazi death camp during World War II—Auschwitz . Victor Ripp‘s memoir Hell’s Traces: One Murder, Two Families, Thirty-Five Holocaust Memorials tells the story of the two families’ divergent paths during and in the aftermath of WWII.