"You're terrified of a little bit of color," Kael said, noticing her frantic attempts to hide her wrist. He held up a piece of steel. It was rough and dull, but when he struck it with a hammer, it didn't shatter like the city's perfect glass. "Pure iron is soft, Elara. It’s the carbon—the 'impurity'—that makes it steel. It’s what gives it the strength to hold up the world."
about Elara leading a rebellion of the "Impure." Impurities
The city of Oakhaven was a marvel of glass and white stone, built upon the absolute law of Purity. Every citizen was scanned daily; a single stray thought of envy, a trace of bitterness, or even the lingering scent of street dust could demote a person to the Scouring District. In Oakhaven, to be "Pure" was to be perfect, and to be "Impure" was to be erased. "You're terrified of a little bit of color,"
and what actually happens to those the city rejects. "Pure iron is soft, Elara
Elara looked at her wrist. The violet mark wasn't a defect; it was a sign of her body’s history, a unique mutation in a world of clones. She realized then that Oakhaven wasn't perfect because it was pure; it was fragile because it was sterile. The glass was beautiful, but it was cold.
Panic, the greatest impurity of all, flared in her chest. She tried to scrub it away with caustic soap, but the mark only pulsed a vibrant, defiant violet. If the scanners saw it, she would be sent to the Scouring. That night, she didn't return to her sterile pod. Instead, she slipped into the shadows of the Lower Pipes, where the city’s discarded lived.