Anslem

Anslem is a novel by Jake Sisko, which he began writing in 2372.

In that year, he was approached by Onaya, a non-corporeal entity that "fed" on the creative minds of humanoids. She helped Jake channel his creativity into beginning Anslem until she had almost drained him to the point of death. Fortunately, Onaya was stopped by Benjamin Sisko, who told his son had written Anslem and Onaya had only brought out something which already existed in him. (DS9 episode: "The Muse")

Jake still had reservations about the work even when he finished it, and it would be several years before he published it. He had done so by the early 25th century. Melanie had read it twice in one night before she visited him in New Orleans. (Prophecy and Change: Revisited)

In an alternate timeline in which Benjamin Sisko was displaced from time by the subspace inversion of the Bajoran wormhole, Jake wrote Anslem'' in his house in New Orleans. Melanie had also read it twice in one night in that reality as well. (DS9 episode: "The Visitor")