The acclaimed author of the “dazzling” (Sara Gruen, #1 New York Times bestselling author) The Book of Speculation returns with an engrossing new novel about a bio-prosthetic surgeon and her personal AI as they are drawn into a catastrophic war. The city of Bulwark is aptly named: a walled city built to protect and preserve the people who managed to survive a series of great cataclysms.

Over generations, an elite class has evolved from the descendants of those who gave up the most to found mankind’s last stronghold, called the Sainted. Saint Enita Malovis, long accustomed to luxury, feels the end of her life and decades of work as a bio-prosthetist approaching.

The lone practitioner of her art, Enita is determined to preserve her legacy and decides to create a physical being, called Nix...

The acclaimed author of the “dazzling” (Sara Gruen, #1 New York Times bestselling author) The Book of Speculation returns with an engrossing new novel about a bio-prosthetic surgeon and her personal AI as they are drawn into a catastrophic war. The city of Bulwark is aptly named: a walled city built to protect and preserve the people who managed to survive a series of great cataclysms.

Over generations, an elite class has evolved from the descendants of those who gave up the most to found mankind’s last stronghold, called the Sainted. Saint Enita Malovis, long accustomed to luxury, feels the end of her life and decades of work as a bio-prosthetist approaching.

The lone practitioner of her art, Enita is determined to preserve her legacy and decides to create a physical being, called Nix...