From New York Times bestselling authors Andrews & Wilson

An activist entrepreneur, a maligned AI, and a newly minted homicide detective with a haunted past catastrophically intersect in The Sandbox. The Silence of the Lambs meets Ex Machina in this groundbreaking techno-thriller that redefines the meaning of murder in the twenty-first century.

When the CEO of the world's leading artificial intelligence company is found murdered in his home, former Army CID officer Valerie Marks is thrust into her first case as a homicide detective. Valerie has a gift for reading people, a gift that has never failed her before. But that gift is put to the test when her instincts point her to an impossible suspect--an AI born from a secret venture with the Pentagon known as Project Nomad.

To learn the truth, Valerie must team up with two men she doesn't trust--a Green Beret turned government spook from the Pentagon, and the victim's former partner and leading suspect in the case. But nothing can prepare the trio for the dangers that await them and the existential threat to humanity if the Project Nomad AI has somehow escaped its sandbox.