"So funny, so sage and above all so incandescently intelligent" (The Chicago Tribune), the New York Times bestseller Purity is a grand story of youthful idealism, extreme fidelity, and murder, a daring and penetrating book from "the most intelligent novelist of [his] generation" ...

"So funny, so sage and above all so incandescently intelligent" (The Chicago Tribune), the New York Times bestseller Purity is a grand story of youthful idealism, extreme fidelity, and murder, a daring and penetrating book from "the most intelligent novelist of [his] generation" (The New Republic), Jonathan Franzen, the author of Crossroads

Young Pip Tyler doesn't know who she is. She knows that her real name is Purity, that she's saddled with $130,000 in student debt, that she's squatting with anarchists in Oakland, and that her relationship with her mother--her only family--is hazardous. But she doesn't have a clue who her father is, why her mother chose to live as a recluse with an invented name, or how she'll ever have a normal life.

A glancing encounter with a German peace activist leads Pip to an internship in South America with the Sunlight Project, an organization that traffics in all the secrets of the world--including, Pip hopes, the secret of her origins. TSP is the brainchild of Andreas Wolf, a charismatic provocateur. Now on the lam in Bolivia, Andreas is drawn to Pip for reasons she doesn't understand, and she is equally conflicted about her attraction to him.