Episode 18: Secrets
Takes place on October 31
Harm, a psycho who stole the magic sword of Beowulf, stalks Artemis and Zatanna as they go on patrol. They are assisted by a mysterious girl who only says the word "Secret". Meanwhile, the rest of the team goes to a Halloween party at their school, where Marvin tries to prank them by claiming Martians are invading. Miss Martian is not amused.
Notes:
- The "Abel's House of Secrets" sign is a Shout-Out to House of Secrets, an old DC comics title. The host Abel later turned up in The Sandman with his brother Cain, who in turn hosted House of Mystery.
- As part of a Halloween prank, Miss Martian shapeshifts into a form reminiscent of Marvin the Martian. Like the DC Comic universes, Looney Tunes is another WB animated franchise.
- When in this disguise, Miss Martian roars. The sound used is the signature roar of Godzilla
- At the Halloween party, Mal is dressed up as 90s Superboy
◊, calling it "Superman, done right". Also, Karen's costume is Bumblebee, who was the main inspiration for her character. - Harm uses the Sword of Beowulf. While the depiction of the sword is unique to the show, Beowulf actually exists in the DC Universe; he had an eponymous comic in the 70s, and in recent years has appeared in Wonder Woman.
- Secret and the episode's new villain Harm first appeared in the Young Justice comic series.
- This episode confirms that Robin is already aware of Artemis's real identity.
- Wally's costume is either a nod to Teen Wolf or I Was a Teenage Werewolf. Megan's looks like Corpse Bride.
