An Easter Egg in the new Arkham City video game shows a positive pregnancy test in the Joker's hideout, lying at the base of one of Harley's costumes, hinting that an expanded Clown Crime family will appear in the sequel.
Once was Harlene Quinzelle and one of the most brilliant criminal psychiatrist Arkham Asylum has ever known, like most good girls, fell for the bad boy, The Joker.