"A propulsive, intelligent, ripped-from-the-headlines spy novel that's guaranteed to cost you hours of sleep. Highly recommended."

"This is the most exciting new spy series since Slow Horses: catch it now."

"The ever-inventive Goodman is one of our finest new spy writers and Solitary Agents is perfect for fans of Mick Herron, David McCloskey and Alex Gerlis."

"A global story with a Scottish spirit running all the way through it. An arresting premise, layers of tension and a protagonist you find yourself rooting for. It’s a curtain raiser for an excellent series."

"A sparkling new entry in the canon, with a vivid and unfamiliar setting as well as a gripping cast of characters. Don’t start it last thing at night, or you might miss breakfast."

"As with all good spy fiction, the tradecraft is central to what works and Goodman has proven across the course of the two novels, he is more than capable of delivering believable terminology and espionage techniques."