A gripping historical adventure from international number one bestselling author Diana Gabaldon.

The year is 1757. On a bright June day, Lord John Grey emerges from his club, his mind in turmoil. A nobleman and a high-ranking officer in His Majesty's Army, Grey has just witnessed something shocking. But his efforts to avoid a scandal that might destroy his family are interrupted by something still more urgent: the Crown appoints him to investigate the brutal murder of a comrade-in-arms, who might well have been a traitor.

Obliged to pursue two inquiries at once, Major Grey finds himself ensnared in a web of treachery and betrayal that touches every level of society - and threatens all he holds dear. From the bawdy-houses of London's night world to the drawing rooms of the nobility, from the blood of a murdered corpse to the thundering seas of the East India Company, Lord John follows the elusive trail of the woman in green who may hold the key to everything - or to nothing at all.

The early days of the Seven Years War come brilliantly to life in this historical adventure mystery by the acclaimed author whose unique and compelling storytelling has engrossed millions of readers worldwide.

Diana Gabaldon is the author of the international bestsellingOutlandernovels and Lord John Grey series.

She says that theOutlanderseries started by accident: 'I decided to write a novel for practice in order to learn what it took to write a novel, and to decide whether I really wanted to do it for real. I did - and here we all are trying to decide what to call books that nobody can describe, but that fortunately most people seem to enjoy.'

And enjoy them they do - in their millions, all over the world. Published in 42 countries and 38 languages, in 2014 theOutlandernovels were made into an acclaimed TV series starring Sam Heughan as Jamie Fraser and Caitriona Balfe as Claire. Seasons three and four are currently in production.

Diana lives with her husband and dogs in Scottsdale, Arizona, and is currently at work on her ninthOutlandernovel.