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On Halloween night, Artemis and Zatanna take on a psychotic teenager called Harm who wields the Sword of Beowulf. Meanwhile, Kid Flash, Superboy, and Miss Martian go to a high school dance and deal with a Martian invasion that isn't.
At the new York Museum of Art, Lt. Daniels and his men investigate the theft of the Sword of Beowolf. The curator explains that legends of the sword say that it provides great power to the pure of heart. When the curator recites the incantation that summons the power, and the thief, Harm drops from the ceiling. He has the sword and recites the incantation, and pulls the sword from its sheath made from a human sword. The sword allows him to blast the policemen unconscious, and the curator points out that only someone pure of heart can wield the sword. As Harm advances on him, he explains that the legend doesn’t say it has to be someone pure good...Read the full recap
Curator: But the legend... only the pure of heart should be able to summon that power.
Harm: The legend said the heart must be pure. It never said pure good.
Zatanna: Oh, look. Zombie Captain Marvel. That's hilarious. Heh. is the Justice League having a party? 'Cause my dad didn't mention it.
Captain Marvel: No, no, no, no. See, I... Fine. I'm going trick-or-treating. And I'm not sharing my candy.
Mal Duncan: Burn victim?
Superboy: Mummy. You?
Mal Duncan: Superman. Done right.
Superboy: Yeah. Good luck with that.
Harm: Both must do better or suffer Harm.
Artemis: We get it. Your name is Harm.
Harm: So unfocused. It struggles with inner demons and can't fight Harm while fighting itself. Harm doesn't battle his demons. Harm embraces them.
Artemis: Would Harm please shut up?!?