On the trail of one ‘jolly grandpa’ with a patchy psychiatric history and an encyclopaedic knowledge of poison gases, Joe Dunthorne is forced to confront the uncomfortable questions that lie at the heart of every family. Can we ever understand where we come from? Is every family in the end a work of fiction? And even if the truth can be found – will we be able to live with it?Children of Radium is a remarkable, searching meditation on individual and collective inheritance.