From the New York Times bestselling author of Ninth House, Hell Bent, and creator of the Grishaverse series comes a highly anticipated historical fantasy set during the Spanish Golden Age.

In a shabby house, on a shabby street, in the new capital of Madrid, Luzia Cotado uses scraps of magic to get through her days of endless toil as a scullion. But when her scheming mistress discovers the lump of a servant cowering in the kitchen is actually hiding a talent for little miracles, she demands Luzia use those gifts to better the family's social position.

What begins as simple amusement for the bored nobility takes a perilous turn when Luzia garners the notice of Antonio Pérez, the disgraced secretary to Spain's king. Still reeling from the defeat of his armada, the king is desperate for any advantage in the war against England's heretic queen—and Pérez will stop at nothing to regain the king's favor.

Determined to seize this one chance to better her fortunes, Luzia plunges into a world of seers and alchemists, holy men and hucksters, where the line between magic, science, and fraud is never certain. But as her notoriety grows, so does the danger that her Jewish blood will doom her to the Inquisition's wrath. She will have to use every bit of her wit and will to survive—even if that means enlisting the help of Guillén Santangel, an embittered immortal familiar whose own secrets could prove deadly for them both.

Some people think foxes are similar to ghosts because we go around collecting qi, or life force, but nothing could be further than the truth. We are living creatures, just like you, only usually better looking...

Manchuria, 1908. A young woman is found frozen in the snow. Her death is clouded by rumors of foxes involved, which are believed to lure people by transforming themselves into beautiful women and men. Bao, a detective with a reputation for sniffing out the truth, is hired to uncover the dead woman's identity. Since childhood, Bao has been intrigued by the fox gods, yet they've remained tantalizingly out of reach. Until, perhaps, now.

Meanwhile, a family that owns a famous Chinese medicine shop can cure ailments, but not the curse that afflicts them—their eldest sons die before their twenty-fourth birthdays. Now the only grandson of the family is twenty-three. When a mysterious woman enters their household, their luck seems to change. Or does it? Is their new servant a simple young woman from the north or a fox spirit bent on her own revenge?

Bestselling author Yangsze Choo brilliantly explores a world of mortals and spirits, humans and beasts, and their dazzling intersection. The Fox Wife is a stunning novel about a winter full of mysterious deaths, a mother seeking revenge, and old folktales that may very well be true.