Julia visits Quentin and inadvertently reveals the illusion's falsity by mentioning she didn't see the "fireworks" Quentin cast—something she shouldn't have known about if he were truly non-magical.
Quentin finds himself in a distorted version of his past mental health clinic. Familiar faces appear as fellow patients or staff: Eliot is a patient seeking "happy pills," Alice is an unhinged inmate who thinks she's an alien, and Penny is an orderly. [S1E4] The World in the Walls
Quentin leads a music therapy group in a rendition of Taylor Swift’s "Shake It Off" to annoy the "orderly" version of Penny, testing if the real Penny’s consciousness is linked to the dream. Quentin leads a music therapy group in a
After helping Quentin wake up, Julia is betrayed by Marina, who burns her hedge witch "stars" off her skin and banishes her from the coven. Julia is betrayed by Marina
The Magicians: Season 1, Episode 4 - "The World in the Walls"