Editing MirrorMask (section)

==Plot==
Helena Campbell works alongside her parents Joanne and Morris at their family circus, but desires to join real life. At the next performance, after a heated argument between mother and daughter, Joanne collapses and is taken to the hospital. While Helena stays with her grandmother, she learns that her mother requires an operation, and Helena can only blame herself for the situation.

That night, Helena wakes in a dream-like state and leaves her building to find a trio of performers outside. As they perform for her, a shadow encroaches on the area and two of the performers are consumed by it. The third, a juggler named Valentine, helps to quickly direct Helena to safety via magical flying books. She learns they are in the City of Light, slowly being consumed by shadows, causing its widely varied citizens to flee. Soon, Helena is mistaken for the Princess. She and Valentine are taken to the Prime Minister. He explains that the Princess from the Land of Shadows stole a charm from the White City, leaving their Queen of Light in a state of unnatural sleep and the City vulnerable to the Shadows. Helena notes the resemblance of the Queen and Minister to her mother and father, and offers to help recover the charm along with Valentine. They are unaware their actions are being watched by the Queen of Shadows, who has mistaken Helena for her daughter.

As they strive to stay ahead of the shadows, Helena and Valentine follow clues to the charm, called the "MirrorMask". Helena discovers that by looking through the windows of the buildings, she can see into her bedroom in the real world, through the drawings of windows that she created and hung on the wall of her room. She discovers that a [[doppelgänger]] is living there, behaving radically differently from her. The doppelgänger soon becomes aware of her presence in the drawings and begins to destroy them, causing parts of the fantasy world to collapse. Valentine betrays Helena to the Queen of Shadows in exchange for a large reward of jewels. The Queen's servants brainwash Helena into believing that she is the Princess of Shadows. Valentine has a change of heart and returns to the Queen's palace, helping Helena break the spell. They search the Princess' room, and Helena discovers the MirrorMask hidden in the mirror. They flee the castle with the charm.

As they escape to Valentine's flying tower, Helena realizes that her doppelgänger in the real world is the Princess of Shadows, who had used the MirrorMask to step through the windows in Helena's drawings. The Princess destroys the rest of the drawings, preventing Helena from returning, and Helena and Valentine disappear in the collapsed world. The Princess takes the drawings to the roof to disperse the shreds into the wind, but discovers one more drawing Helena had made on the back of the roof door. Helena successfully returns to reality, sending the Princess back to her realm. Simultaneously, the Queen of Light awakens and the two Cities are restored to their natural balance.

Helena is woken on the roof by her father, and they're overjoyed to hear that Joanne's operation is a success. Helena happily returns to work at the circus, where she becomes fascinated by a young man—heavily resembling Valentine—who aspires to be a juggler.