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...

Random House presents the audiobook edition of Ultimatum by Frank Gardner, read by Rupert Farley. SIS agent Luke Carlton returns in the explosive, action-packed and unerringly authentic new thriller from BBC Security Correspondent Frank Gardner, author of the acclaimed No.1 bestseller Crisis...

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 lights. No...

Brought to you by Penguin. Discover the explosive new Luke Carlton spy thriller from the Sunday Times bestseller and BBC security correspondent. The world is on high alert. Across the strait from Taiwan, China’s armed forces appear to be readying for war. Could the People’s Republic be...

THE NEW LUKE CARLTON THRILLER. MI6 operative Luke Carlton returns in his most exciting and unnervingly up-to-the-minute mission yet . . . Get ready for the new edge-of-your-seat spy thriller from the bestselling author. In the dying light of an Arctic afternoon a monstrous black shape slips...