The Sanction by Mark Sennen

Rebecca da Silva, former crack sniper in the British Special Forces stationed in Afghanistan, is languishing in a dead-end job.

Stephen Holm, an intelligence analyst, gambles his position upon the capture of the ruthless Taher, a terrorist so elusive that MI5 are not convinced he exists.

But then a deadly terror attack in Tunisia changes everything, setting them on two interconnected paths, one born of revenge, the other of obsession. How do you stop a terrorist you can't find? Their discoveries, and fight for survival, will go to the very heart of power... To the White House.

An addictive espionage thriller by the bestselling author of the DI Charlotte Savage series, perfect for fans of James Deegan, Mark Greaney and James Swallow.

Mark Sennen was born in Surrey, but spent his formative years in rural Shropshire where he learnt to drive tractors and worm sheep. He has been a reluctant farmer, an average drummer, a failed Ph.D. student and a pretty good programmer. He lives with his wife, two children and a rather large dog, beside a muddy creek in deepest South Devon. He is the author of the DI Charlotte Savage series.