Assassin. Immortal. Spy. An ill-matched pair of spies pose as a couple to investigate a series of murders in 1930s Shanghai, from the author of THESE VIOLENT DELIGHTS. Four years ago, Rosalind Lang was saved from the brink of death. Now she doesn't sleep or age - and can heal from any wound.

In short, Rosalind cannot die. Desperate for redemption from her traitorous past, she works as an assassin for her country. Code name: Fortune.

When a series of murders causes unrest in Shanghai, Rosalind's mission pivots. Ordered to infiltrate foreign society and identify the culprits, she must pose as the wife of another spy, Orion Hong, to reduce suspicion. Although Rosalind finds Orion's cavalier attitude and playboy demeanor infuriating, she agrees to work with him for the greater good.

But Orion has an agenda of his own, and Rosalind has secrets she wants to keep buried. Soon, the two spies will find there is more to this mystery than they ever imagined . .