In late September 1941, tens of thousands of Jews from the city of Kyiv were rounded up by the Germans with the help of Ukrainian militia. They were taken to a place called Babyn Yar, meaning “old woman’s ravine” in Ukrainian. Here, they were forced to strip before being shot by members of Einsatzgruppe C, Sonderkommando 4a, a Nazi death squad. More than 33,000 Jews were murdered. Following the slaughter, a few older Jews managed to return to Kyiv where they sat for days and nights by the synagogue, traumatised, until they, too, were killed by a German guard. The...