‘A gripping psychological clash of wills, tactics and morals … Kell’s third appearance confirms him as one of the most interesting and sympathetic characters in the spy thriller field’ The Times

‘Breathtaking . . . suspenseful . . . Kell brings a note of grace to the treacherous world of the spy novel’ Washington Post

‘A magnetic tale of the New Cold War: not since George Smiley trapped Karla have we seen such a delicious recruitment between East and West’ Jason Matthews, New York Times bestselling author of Palace of Treason

‘A clever spy thriller combining believable spycraft, deft characterisation and acute psychological observation’ Ben Macintyre

‘Agent Kell is hell-bent on revenge ― but his quest ends up endangering Britain’s national security. Classic spy fiction at its best’ New York Post, “Must Reads”

‘The spies’ shifting psychological duel is riveting … deftly coupled with a topical subplot’ Sunday Times

‘Thomas Kell has become one of the most interesting and well-drawn spies in contemporary literature – a man who deserves to be spoken in the same breath as George Smiley … Delicately written, with Cumming’s customary subtle humour, it confirms him as le Carré’s heir’ Daily Mail

‘Wonderful stuff – Charles Cumming is the one true heir to John Le Carré and Ian Fleming. Nobody documents life in the shadows quite as brilliantly as Charles Cumming – the new spymaster on the block’ Tony Parsons, author of The Murder Bag

‘A clever, believable spy thriller by a man dubbed the heir to John le Carré’ Sun