The story is split across three different timelines—1892, 1957, and the present day (2022)—connected by the once-in-a-lifetime passing of Bailey's Comet . Key Plot Points

Rivervale, a "shadow town" and parallel dimension where the supernatural is common.

Decades later, Abigail is living under the persona of Poppy Blossom. She assists the women of Rivervale with herbal remedies but is eventually targeted by the town's men and placed under house arrest.

Abigail manages a school for girls and falls in love with Thomasina Topaz. After Abigail refuses to marry a warlock named Fen Fogarty, he murders Thomasina and curses Abigail to live a long, lonely life forever as the comet passes.

This report focuses on the episode , which is the fourth episode of Riverdale's sixth season. This specific installment is part of the five-episode " Rivervale " event, a supernatural alternate-universe arc that kicks off the season. Episode Overview Original Title: " Chapter Ninety-Nine: The Witching Hour(s) "

Cheryl reveals to her student Britta that she has been Abigail all along. She is waiting for the next passing of Bailey's Comet to finally break the curse. The Sabrina Crossover

The episode centers on the history of the Blossom women and the revelation that they are all, in fact, the same person cursed with immortality.