Top detectives race to untangle a web of lies behind the murders. But just as they’re about to arrest a key loyalist suspect, their secure office containing top-secret evidence goes up in flames. They hear whispers that a clandestine unit of the British army could be behind the sabotage. All to protect one man – a man Cara reveals is a vicious fighter with a shadowy past. Sign up to our most popular newsletter, From the Editor. Look forward to receiving free-thinking comment and the day's biggest stories, every morning. telegraph.co.uk/fromtheeditorGet in touch: cara.mcgoogan@telegraph.co.uk and on social media @cjmcgoogan  Hosted on Acast. See acast.com/privacy for more information.