Wizards of Waverly Place Wiki
Wizards of Waverly Place Wiki
"I'm a wizard."
Alex to Harper
“Harper Knows”
Season 2, Episode 8
Air date

November 23, 2008


Gigi McCreery & Perry Rein


Victor Gonzalez

Episode Chronology


Saving WizTech, Part 2


Taxi Dance

"Harper Knows" is the eighth episode of season two of Wizards of Waverly Place, and the 29th of the overall series. It first aired on November 23, 2008.



It is Harper's birthday, and Alex forgets, again. This is because of PopCon, a popular comic book and movie convention. The Russo Family is on an assignment at PopCon, where they are on the look out for rogue wizards who may be using their magic. Alex and her siblings go as a special wizards-in-training assignment and Harper comes along for the costume contest. Alex and Harper get in a fight after Harper gets upset at Alex, for forgetting her birthday. Alex begins to feel guilty for lying and keeping secrets, and she's tired from using up all of her energy to keep the secret. Then when Justin and Hugh Normous confront her and decide to take her in, she teleports leaving Justin and Hugh with the now charmed Battle Diva costume.

Harper's costume then gets mixed up with the charmed version because of Alex. During the contest, Harper begins to float. The wizard police are able to cover it up using ropes. Alex eventually decides to tell Harper that she is a wizard, and convinces her by taking her to space and giving her a cupcake in space. In the end, the Russos show Harper the magic lair while Jerry and Justin plot to erase Harper's memory using a spell. However, this never comes to pass.



  • Lies, lies, I need a disguise — The ability to disguise one's self.
  • Enchanted superhero costume - A normal costume that was enchanted by Alex to gives the person who wears it basic superpowers — Flight, super strength, laser vision, super speed, and the ability to make people repeat themselves.



  • Aired out of production order.
  • PopCon is a parody of ComicCon. Battle Diva is a parody of Wonder Woman
  • Alex reveals the Russo's secret to Harper in this episode.


  • When Alex gives the birthday cupcake to Harper in space, the candle on top is lit on fire, which shouldn't even be possible, considering you'll need oxygen to start a fire.
    • But then again, it is magic.
  • Goblin had 4 legs in his last appearance.


Main Cast


Guest Starring


Behind the scenes