Used. Paperback. If your passport is gathering dust and your paranoia could use a polished workout, John le Carré’s breathless thriller trades the damp corridors of Whitehall for the sun-baked courts of Antigua and a match that quickly turns murderously messy. An ordinary academic couple on holiday finds themselves unwittingly volleying secrets for a charismatic Russian money-man desperate to defect, plunging them deep into an international game of high-stakes blackmail. Le Carré serves up a masterclass in moral ambiguity where the lines between loyalty and betrayal blur faster than a baseline winner. Grab this smart slice of espionage before the hedge-fund hounds catch your scent.