New York Trilogy by Paul Auster

Three brilliant investigations into the storyteller’s art:City of Glass: Quinn, a writer of detective stories, becomes enmeshed in a case more puzzling than any he might have written.Ghosts: Blue has been hired by White to spy on Black. From the window of his rented room, Blue watches Black in his room across the street. But Black is staring out of his window. Who is watching whom?The Locked Room: When Fanshaw disappears, leaving behind a wife, a baby, and an extraordinary cache of novels, plays and poems, his boyhood friend is lured obsessively into the life that Fanshaw left behind.