"A Toy for Juliette" is a 1967 science fiction and horror short story by American writer Robert Bloch, appearing for the first time in Harlan Ellison's anthology Dangerous Visions.
Plot
In a post-apocalyptic world, a time traveler randomly abducts people from throughout history for his granddaughter Juliette (named for the Marquis de Sade's novel Juliette) to torture and kill in her sexual games. The last "toy" he gives her, however, turns out to be Jack the Ripper.
Reception
SFF World has called it "unsettling".
Sequel
Ellison wrote a sequel for the same anthology called "The Prowler in the City at the Edge of the World".
See also
Jack the Ripper
Jack the Ripper in fiction
Juliette (novel) Marquis de Sade