'Channelling ‘The Wild Geese’ and ‘Where Eagles Dare,’ Adler’s hard-boiled, knowing homage to the action thriller has a dark, modern twist.' Harry Keeble, author of ‘Crack House’ and ‘Terror Cops’. A war-blighted African state, in thrall to the Chinese… A rogue British security contractor, captured freelancing for a rebel general, interred in a high security prison… An MI6 team under suspicion of betrayal, tasked with staging a rescue attempt… Enter Cal Winter and the press-ganged mercenaries of The Firm, tasked with planning a daring assault on a remote, heavily guarded fortress. But Cal has another off-the-books objective: discover the traitor inside the MI6 team, believed to have been turned by the Chinese Ministry of State Security. Cal’s mission becomes a desperate warzone whodunnit, the only prize betrayal or sudden death. Outnumbered and outgunned, Cal’s team are hunted by an elite team of Chinese commandos in a blood-soaked game of espionage and deception. As more of The Firm’s secrets are revealed, Cal Winter is left with a perilous choice…