There are 4 books in the Luke Carlton series. The newest book is Invasion which came out in 2024.

1
Crisis

Book cover of Crisis
Introducing Luke Carlton - ex-Special Boat Service commando, and now under contract to MI6 for some of its most dangerous missions. Sent into the steaming Colombian jungle to investigate the murder of a British intelligence officer, Luke finds himself caught up in the coils of a plot that has terrifying…
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2
Ultimatum

Book cover of Ultimatum

Authentic, unnervingly current and action-packed, Ultimatum is the explosive new thriller from BBC security correspondent and No.1 bestseller Frank Gardner.
Deep within a cave system at a military complex south-east of Tehran, hidden from the prying eyes of Western satellites, scientists are working round-the-clock on a banned device. Acting on…

3
Outbreak

Book cover of Outbreak

***THE INSTANT SUNDAY TIMES BESTSELLER***

The explosive new thriller featuring MI6 operative Luke Carlton on his most terrifying mission yet.

Deep within the Arctic Circle, three scientists from the UK's Arctic Research Station trudge through a blizzard in search of shelter. They see a cabin ahead. It appears abandoned. No…

4
Invasion

Book cover of Invasion

THE NEW LUKE CARLTON THRILLER.BBC Security Correspondent FRANK GARDNER'S thrillers are . . .
'Fast, taut, tense, accurate.' FREDERICK FORSYTH

'Utterly authentic.' DAILY MAIL

'Enthralling, intelligent.' FINANCIAL TIMES

'Nerve-shredding.' TONY PARSONS

'Heart-in-mouth.' i-NEWSPAPER

'Compulsively readable.' RADIO TIMES
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The world is on high alert.

Across the Strait from Taiwan, China's…