Una Kelly, the novel’s dynamic, round protagonist, is a cunning grifter whose journey from the slums of New York to the wards of Bellevue Hospital charts an internal transformation. Initially, her character is defined by a strict code of personal rules for survival, which she has developed over years of thieving under the tutelage of her mentor, Marm Blei. This code, predicated on self-preservation and distrust, is encapsulated in her primary maxim: “keep your head down and look out for yourself” (14). Una is a master of disguise and deception, skills needed to be a thief but which ironically allow her access into a world of respectability. Her decision to hide in the Bellevue Training School for Nurses is a calculated act of self-interest, yet this deception inspires a version of herself rooted in empathy and responsibility. As a result, Una’s journey explores The Intersection of Deception and Authenticity, as the role she performs unexpectedly forges a new, genuine identity.

Una’s character development is driven by the clash between her street-honed cynicism and the structured, ethical environment of the nursing school. Initially, she scoffs at the rigorous demands and moral expectations of Bellevue, viewing the profession as just another con.