Agent Liz Carlyle Series

An “invisible” is CIA-speak for the ultimate intelligence nightmare: The terrorist who, because he or she is an ethnic native of the target country, can cross its borders unchecked, move around that country unquestioned, and infiltrate its institutions with ease. An invisible on mainland Britain was the worst possible news. For Liz Carlyle, an MI5 Intelligence Officer, this report from MI6 marks the start of an operation that will test her to the limit and put her own life in jeopardy.

Liz Carlyle is a smart, impassioned MI5 intelligence officer. When one of her agents reports suspicious meetings taking place at an Islamic bookshop, she trusts her instinct that a terrorist cell is at work. But she's surprised when her boss suddenly takes her off the case and shocked to hear why: he has received a tip-off that a mole, a "secret asset", has been planted in one of the branches of British Intelligence.

Following a gruelling operation in Paris, Liz Carlyle’s bosses post her to MI5’s counter-espionage desk, but they haven’t counted on the fallout from Putin’s incursions into the Ukraine. Liz needs to track down a Russian spy who has entered the UK before he completes his fatal mission. Meanwhile, the intelligence services are in the spotlight. In response to the debate raging around privacy and security, they hire Jasminder Kapoor, a controversial civil rights lawyer, to explain the issues to the public.

A man lies dying in a hospital in upstate Vermont. The nurses know only that he is an academic at a nearby university, but they have been instructed to call the FBI should anyone visit their patient. News of this suspected Russian illegal soon reaches MI5, where Liz Carlyle has been contacted by Mischa, a top secret source who is requesting a clandestine rendezvous in Berlin.