Marc Portman novels

He's a professional shadow. A watcher who provides protection in potentially hostile situations. He works in the background, stays off the record. Often the people he's guarding have no idea he's there. Some people know him as Portman. When two British intelligence agents are despatched to negotiate the release of a group of western hostages in Somalia, veteran MI6 operator Tom Vane realizes that something about this operation doesn't stack up. Unwilling...

"Deep cover specialist Marc Portman is in Lebanon on a last-minute assignment. A straightforward collect-and-go job. At least it should have been. Ambushed by a surprise attack, it's clear that someone must have had advance warning of Portman's arrival. But who is his unseen enemy - clearly one with considerable resources - and why do they want him dead? More importantly, how could his attacker have known of his movements with less than 24 hours'...