The Blackwood arsenic poisoning and its aftermath
Six years earlier, arsenic was put in the sugar bowl at the Blackwood family dinner; four family members died, Uncle Julian was left an invalid, and Constance, who did not take sugar, was tried for murder and acquitted. The narrator Merricat, then twelve and sent to bed without supper, was the actual poisoner, and Constance knowingly shielded her. When cousin Charles arrives to court Constance and get at the family safe, Merricat starts a fire, the villagers loot the burning house, and the sisters seal themselves inside the charred ruin, where the guilt-stricken villagers start leaving food on the doorstep.
