Some Dark Force ($3.99) by Christina Boufis and Victoria Olsen: London, 1888. A killer dubbed Jack the Ripper stalks the streets, preying on poor women—and something even older lurks in the shadows. This richly atmospheric Victorian, a true-crime meets Dracula mashup, has been called "hard to put down" and "thoroughly satisfying." Can a group of women stop the dark forces before it's too late?
This deal is good on February 24, 2026