In the tradition of The Hare with Amber Eyes, this profound...comic...[and] unconventional (The New York Times) family memoir investigates the dark legacy of the authors great-grandfather, a talented German-Jewish chemist who wound up developing chemical weapons and gas mask filters for the Nazis. nWhen Joe Dunthorne began researching his family history, he expected to write the account of their harrowing escape from Nazi Germany in 1935. What he found in his great-grandfather Siegfrieds voluminous, unpublished, partially translated memoir was a much darker, more complicated story. n nSiegfried was an eccentric Jewish scientist living in a small town north of Berlin, where he began by developing a radioactive toothpaste before moving on to products with a more sinister military connection--first he made and tested gas-mask filters, and then he was invited to establish a chemical weapons laboratory. By 1933, he was the laboratorys director, helping the Nazis to improve their poisons and prepare for large-scale production. I confess to my descendants who will read these lines that I made a grave error, he wrote. I cannot shake off the great debt on my conscience. n nArmed only with his great-grandfathers rambling, nearly two-thousand-page deathbed memoir and a handful of archival clues, Dunthorne traveled to Munich, Ammendorf, Berlin, Ankara, and Oranienburg--a place where hundreds of unexploded bombs remain hidden in the irradiated soil--to uncover the sprawling, unsettling legacy of Siegfrieds work. Seeking to understand one jolly grandpa with a patchy psychiatric history, Dunthorne confronts the uncomfortable questions that lie at the heart of every family: Can we ever understand our origins? Is every family story a work of fiction? And if the truth can be found, will we be able to live with it? n nA galvanizing and revelatory saga (Booklist) and a slippery marvel (The Observer, London), Children of Radium is a deeply humane and endlessly surprising meditation on inheritance that considers the long half-life of trauma, the weight of guilt, and the ever-evasive nature of the truth.n