On June 28, 2017, Irving revealed in a long letter to fans on Facebook that his new novel will be, primarily, a ghost story. "...I have a history of being interested in ghosts. And here come the ghosts again. In my new novel, my fifteenth, the ghosts are more prominent than before; the novel begins and ends with them. Like A Widow for One Year, this novel is constructed as a play in three acts. I'm calling Act I 'Early Signs.' I began writing it on New Year's Eve—not a bad night to start a ghost story."
On August 1, 2017, an update about Irving's fifteenth, in-progress, novel, was posted to his Facebook page: "It's been 45 years since John Irving published The Water-Method Man. While his second novel is regarded as a purely comic tale, and John's current project is a darker contemplation of life's disruptive forces, the two novels bear some resemblance to one another. John Irving is once again experimenting with framed narratives and writing about the evolution of a writer—like Bogus Trumper, one who writes screenplays. This time, we see the main character—Adam Brewster—mature, from childhood and early adolescence, to become a writer like Garp, or Ruth Cole, or Juan Diego, as if writing were an inevitability given the fateful circumstances of his life. And, along the way, despite the darkness, there are points of humor. John's work in progress may ultimately be his funniest novel since The Water-Method Man."
In an interview with Mike Kilen for The Des Moines Register, published on October 26, 2017, Irving revealed that the title of his new novel-in-progress is Darkness As a Bride. The title comes from lines in Shakespeare's play, Measure for Measure: "If I must die, / I will encounter darkness as a bride, / and hug it in mine arms."