"Publishers Weekly" called it a "subtle, unsettling alternative WWII history": "Convincingly detailed diaries, scraps of published texts, declassified transcripts and more baffle a historian who tries to reconcile different realities. The brothers themselves recognize the uncertainty of motives and actions; Joe in particular struggles to believe that he's making a better future even though he realizes how much it costs him personally. Many alternative history novels are bloodless extrapolations from mountains of data, but this one quietly builds characters you care about—then leaves their dilemmas unresolved as they try to believe that what they have done is 'right'."