When an executed original of a secret treaty between England and France, known as the French Treaty, is stolen from the country estate of Lord Halifax, Scotland Yard asks Joanna Blalock, Dr. John Watson, Jr., and Dr. John Watson, Sr. to participate in the hunt. As the government becomes more restless to find the missing document and traditional investigative means fail to turn up the culprit, Joanna is forced to devise a clever plan to trap the thief.--...

To return home to his beloved Scotland, Colin MacGregor must complete one last mission and, while infiltrating a traitor's home to expose a treasonous plot against the king, comes to the rescue of Lady Gillian Dearly and her young son who are being held captive by a madman.

"When Teddy Fay receives a freelance assignment from a gentleman he can't refuse, he jets off to Paris on the hunt for a treasonous criminal. But as Teddy unearths more information that just doesn't seem to connect, his straightforward mission becomes far bigger--and stranger--than he could imagine. The trail of breadcrumbs leads to secrets hidden within secrets, evildoers trading in money and power and a global threat on an unprecedented scale. Under...

Amateur detectives in Georgian England, Harriet Westerman and Gabriel Crowther investigate the drowning of a man in the Thames and discover that he may have been part of a plot to betray England's secrets to France.