For three decades Josef Mengele, the doctor who performed horrific experiments on Auschwitz prisoners, floated through South America until the day he collapsed in the Brazilian surf in 1979. In his new novel, The Disappearance of Josef Mengele, Olivier Guez traces Mengele’s travels during those years in hiding, as he kept two steps ahead of those trying to capture him. Guez will be in conversation about his book and his research.