"A gripping, relentless whodunit plot...Most readers will reach the final page with regret and in awe of Smith's uncompromising vision of the realities of a police state and the toll it takes on those caught in its meshes."―Publisher's Weekly (starred review)
"An old-fashioned thriller that would do Ludlum and le Carré proud...A big book, in every sense, that's sure to draw attention."―Kirkus (starred review)
"When a trilogy is as unpredictable and riveting as Tom Rob Smith's Child 44 series, set as it is both in the harsh Russian landscape and the dense thicket of the human soul, expectations quickly evaporate in a page-turning frenzy....Smith, a young British screenwriter turned best-selling novelist, has created in Leo Demidov a Kafkaesque modern hero for our times, a good man trapped in a corrupt, manipulative system, forced to choose between loyalties to family, country and conscience. With a cinematographer's eye for settings and historical detail, Smith uses Leo's journey to examine larger issues, especially the political, social and religious systems that both unite and divide us."
"Fortified by formidable details of Soviet history, Smith's closing volume of the Leo Demidov trilogy (Child 44; The Secret Speech) knits together iconic characters and elements...Fans of Smith's first two books will avidly seek out the final chapter, though this one stands on its own as well. The Afghan interlude is a searing echo of today's headlines, while the buildup of suspense over several decades is the armchair equivalent of a jaw-jarringly extreme ride at an amusement park."―Library Journal
"Agent 6 has all the elements that made the first two books in the series hits: relentless action, a flawed but fascinating protagonist and a clear-eyed view of the absolute brutality of an authoritarian government."―Dallas Morning News
"A new talent who looks set to be entertaining and moving us for many decades to come."―The Scotsman