THE INSTANT #1 SUNDAY TIMES BESTSELLER'Herron is at the summit of a new golden age of spy fiction' Sunday Times*Now a major TV series starring Gary Oldman*In MI5 a scandal is brewing and there are bad actors everywhere. A key member of a Downing Street think-tank has disappeared without a trace. Claude Whelan, one-time First Desk of MI5's Regent's Park, is tasked with tracking her down.
*THE INSTANT SUNDAY TIMES BESTSELLER*'A gripping thriller' Ian Rankin'Genuinely thrilling' Daily Telegraph'Herron's best novel yet' Sunday Express'Pure joy' The Observer'Brilliant' Literary ReviewSlough House - the crumbling office building to which failed spies, the 'slow horses', are banished - has been wiped from secret service records.