Brie’s bright red hair is the subject of frequent comments from multiple characters in the novel. Bakken, Madame Vivias’s goblin, takes it as payment for information at various points, though Brie does not discover what he uses this hair for in this installment in the series. Paired with the name “Fire Girl,” which Bakken uses to describe her, Brie’s hair becomes a symbol of how she survived the fire in her childhood, which led her to possess Oberon’s crown.

At the end of the novel, Brie gives Bakken all her hair, rather than the small locks she has been gifting him for each piece of information. This indicates that, though she is tricked into transforming into a fae by Sebastian, she is also transforming of her own accord. By shedding her one vanity from her human days, Brie symbolically puts her human past behind her, suggesting that, despite the manipulations she has faced, she will continue to pursue autonomy and do what she feels is right in subsequent volumes in the series—even though she will now do so as a fae, something she never wanted to become.