The two fall out, and so Alex shrinks Zeke and Justin to create her own puppet show.
This initially upsets Harper, as she's been upstaged by Alex, but Alex tells her that she's earned enough money to move into an apartment and wouldn't want to move out without Harper.
She is highly competitive and doesn't take losing competitions well, as seen when Alex uses the enchanted pants to make herself smarter than her.
Harper and Alex would later go to an Angel-only club in Los Angeles (disguised as angels) with Rosie and Justin, but their lack of flying abilities causes suspicion over what they truly are.They manage to convince the others at the club that they are angels, but this only lasts for a short amount of time, and they are believed to be Angels of Darkness.Harper's crush on him dies down noticeably, but she still shows jealousy when she meets Juliet Van Heusen.However, her harshness subsides and she begins to grow kinder toward her.Alex is shown that, despite appearing not to care for some people's humiliation, she does care for Harper, when she goes to Gigi's tea party at a hotel with an unspeakable name in order to stop her from humiliating Harper as Gigi planned.
Unknowingly to Harper, her magical adventures with Alex would follow to a fashion magazine and a magically brought to life mannequin.
While Alex doesn't explain the situation or her anger, Harper is given permission to write stories based on their experiences.
Harper briefly speaks with her future self and is given her hat, although she doesn't find out who she is.
After graduating from Tribeca Prep, Alex and Harper decide to move into an apartment but have to earn money to pay for it.
They mount a puppet show but Alex's usual laziness leads to Harper doing everything alone.
Their adventures continue, as her brain briefly fuses with Alex's, and survives an alien invasion of the Waverly Place Substation.