Short Story
Sweet Song of Death
- by Stephen Kimmel
- in Asimov’s Science Fiction, February 1983
Dave, an old man on the verge of dying, partakes in a time travel experiment, hoping to save his long-ago wife and young daughter from a car accident even though nobody has ever managed to change past events before.
If our hypothesis is correct and the Corvini-Langstrum effect is a form of time travel. . . then you may be able to change the circumstances and prevent her death.