Stella Rimington

For MI5 officer Liz Carlyle, the nagging complications of her private life are quickly forgotten at Monday's counter-terrorism meeting. An invisible may have entered mainland Britain.

An 'invisible' is a terrorist who is an ethnic native of the target country, who can cross its borders unchecked and move about unnoticed - the ultimate nightmare. By the time they're identified, it may be too late.

The intelligence operation that follows will test Liz to the limit. Who or what is the target? Where and who is the invisible? With each passing hour the danger increases.

But as Liz desperately sifts through the incoming intelligence, she finally realises a truth that could prove deadly: her ability to get inside her enemy's head is the only hope of averting disaster...

But the clock is ticking - and anyone could be at risk.

Book 1 in the Liz Carlyle series.

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.

Liz Carlyle and her Counter Terrorism unit in MI5 have been charged with the task of watching the international under-the-counter arms trade and have become increasingly concerned that extremist Al-Qaeda jihadis are building their power base ready to launch an attack. As the pressure mounts, Liz and her team must intercept illegal weapons before they get into the wrong hands.

MI5 Intelligence Officer, Liz Carlyle, receives alarming information about an operation to disrupt a peace conference at Gleneagles, laying the blame at Syria's door. Liz's task is to prevent a plot that threatens the future of the whole of the Middle East.

In 1988 Harry took a bribe, letting a man he knew as Igor into Britain - and he's regretted it ever since. So when he recognises Igor many years later as his newly-elected MP, he knows he has to come clean. But the MP recognises him too - and Harry fears what he might do next.

Peter Robinson, MP: salesman, politician, bachelor, spy. It was easy to get into Britain in 1988 as an illegal, working deep undercover, but the break-up of the Soviet Union cut Robinson off from his homeland. He's inching closer to Britain's levers of power - but now the one man who knows his secret has reappeared. With no way to contact Moscow, he must act fast to preserve his position.

CIA analyst Manon Tyler has just boarded a plane to London - with a report on Russian illegals to read…

Book 1 in the Manon Tyler series.

When a rogue Russian spy warns her of a plot to hack into the West's military satellite systems, MI5's Liz Carlyle finds her past catching up with her. As Liz and her team hunt for a mole inside the MOD, the trail leads them from Geneva and into a labyrinth of international intrigue, in a race against time to stop the Cold War heating up once again...

When MI5 intelligence officer Liz Carlyle learns of a Russian government plot to kill super-rich Nikita Brunovsky - a man who openly criticises the Putin regime from his London base - it's a race against time to track down the killer. How the man is to be silenced is unclear, but the Foreign Office dreads any kind of incident and Liz must work fast to protect him.

As she goes undercover, desperately trying to find out who in Brunovsky's retinue might betray him, Liz discovers that an 'illegal' Russian agent has arrived in London. Is this the assassin she is seeking? Under an assumed name, caught up in the high-octane world of the oligarchs, Liz soon finds herself in terrible danger...

Book 3 in the Liz Carlyle series.

MI5 intelligence officer Liz Carlyle and her team have been despatched to Northern Ireland to monitor the brutal breakaway Republican groups who never accepted the peace process. Intelligence is focused on the shady Fraternity group. Will their informant turn tail?

When pirates attack a cargo ship off the Somalian coast, one of them is found to be a British-born Pakistani. MI5 Intelligence Officer Liz Carlyle is brought in to establish how and why a young British Muslim could end up onboard a pirate skiff in the Indian Ocean, armed with a Kalashnikov. After an undercover operative connected to the case turns up dead in Athens, it looks like piracy may be the least of the Service's problems...

When Intelligence Officer Liz Carlyle learns from one of her agents that suspicious meetings are taking place at an Islamic bookshop, she trusts her instinct that a terrorist cell is at work. Her boss, Charles Wetherby, immediately puts a surveillance operation into place. An attack seems imminent.

So Liz is surprised when Wetherby suddenly takes her off the case. And she's shocked to hear the reason why: he has received a tip-off that a mole is at work inside British Intelligence. If true, then the potential damage to the Service itself could be immeasurable. Now, as her colleagues scramble to avert a terrorist strike, Liz must find out who the mole is, and what their intentions are, before it is too late.

Book 2 in the Liz Carlyle series.