Overview
"Dedication" is a short story by Stephen King first published as part of the 1988 short story anthology Dark Visions and reprinted in King's 1993 short story collection Nightmares & Dreamscapes.
Plot summary
Hotel housekeeper Martha Rosewall shows her friend Darcy a novel published by her son Peter, which has a dedication that says he could not have done it without her help. Martha goes on to tell the curious Darcy exactly why this sentiment is true.
Many years earlier, a young Martha (pregnant with her husband Johnny's child) visits a bruja named Mama Delorme, who tells her to find the child's "natural father." Martha eventually decides that this "natural father" is Peter Jefferies, a prejudiced writer who often visits the hotel where she works. Martha consumes some of Jefferies' semen, which was left on his sheets, as part of what is implied to be a black magic spell orchestrated by Mama Delorme to pass on Jefferies' writing prowess to her unborn son. Mama Delorme also helps Martha with the problem of her abusive husband, giving her a mushroom that Martha squeezes onto Johnny's gun, which later explodes in his face and kills him during an attempted robbery.
Back in the present, Martha muses on the similarities between her son's novel and a novel published by Jefferies. She also shows Darcy the signatures and handwriting on her copies of both books, which are virtually identical.
From Wikipedia (CC BY-SA 4.0).