It's Friday the 13th and Sabrina learns that this is the day when witches can tell mortals the truth about themselves and the mortals' memories will be erased of it once the day ends. Despite warnings from her aunts about bad consequences, Sabrina decides she can trust Valerie and Harvey to take the news in stride, and she's proven right when they both accept it and the three friends spend the day casting spells and having fun in the Other Realm. However, Libby overhears the news and alerts both the PTA and the media. Happily, Valerie and Harvey have Sabrina's back, and lie to Libby's mob when they show up to Sabrina's door, telling them that they have no clue what she's talking about.
Sabrina: Why didn't you guys tell me that there's a rule that on Friday the 13th I can tell a mortal I'm a witch?
Hilda: Oh the one where you can tell anyone you want and they can know for a whole twenty-four hours?
Zelda: We didn't want you to know
Uses of Magic
- This is the second of three times that Harvey discovers Sabrina's secret, the first time being in the Season 1 episode "Troll Bride."
- We learn that on Friday the 13th, black witch cats scare anyone when they're seen.
- Nick Bakay, who voices Salem, sings the song "The Way You Look Tonight" when Valerie and Drew Carrey are dancing.
- For some reason, Sabrina never decides to tell Harvey and Valerie that she's a witch after they forget everything, despite the fact that they proved that they would easily accept it. It can be assumed that the writers and producers feared that the two knowing Sabrina's secret would greatly alter the series dynamic.
- Mr. Kraft does not appear in this episode.
- We learn that Zelda's best friend was Gwendolyn.