Series numbering from publisher's website.

"Stone Barrington is trying to enjoy some downtime at his English retreat when he's unceremoniously sent off to the remote reaches of the UK and into a deadly snare. As it turns out, this is only the first volley by a rival power, one that has its eyes set on disrupting the peace of the nation. With the help of two brilliant and stunning women, Stone must leverage a new position of power to capture a villain with a lethal agenda. But the closer he comes to nabbing the culprit, the more he realizes there's a bigger plan at work, and a true mastermind who's a force to be reckoned with"--,Provided by publisher.