City by Alessandro Baricco

The author of the international bestseller Silk now delivers a ravishing and wildly inventive novel about friendship, genius and its discontents, and the redemptive power of narrative. Somewhere in America lives a brilliant boy named Gould, an intellectual guided missile aimed at the Nobel Prize. His only companions are an imaginary giant and an imaginary mute. Improbably—and yet with impeccable logic--he falls into the care of Shatzy Shell, a young woman whose life up till that point has been equally devoid of human connection.