From the #1 New York Times bestselling author of These Violent Delights and Our Violent Ends comes the "equal parts intoxicating and dazzling" (Roshani Chokshi, New York Times bestselling author of The Gilded Wolves) first book in a captivating new duology following an ill-matched pair of spies posing as a married couple to investigate a series of brutal murders in 1930s Shanghai.

It's 1931 in Shanghai, and the stage is set for a new decade of intrigue.

Four years ago, Rosalind L ...