Few writers exist in isolation. Instead, most benefit from some type of support, whether from an editor, mentor, or friend. As a work grows, each individual who touches it leaves an indelible mark. The line between author and collaborator begins clearly enough, but authorship can grow murky the longer the collaboration takes place. In Lyrical Ballads, Nostromo, and The Waste Land, multiple writers shaped the final product. Yet the work of those not included in the byline has largely faded to obscurity. Today we explore a few famous cases of (potential) ghostwriting from the world of literature.