|“||If you pity those creatures, those faeries, dying inside their cages, think of this: If it were not for the Cold Peace your people insisted on, they would not be here. Look to the blood on your own hands, Shadowhunters.||”|
In September 2012, Hypatia confronted Kit Herondale and the Blackthorn twins Ty and Livvy after they entered the Shadow Market looking for help from a warlock. When Kit told her that he was an emissary of Barnabas Hale, Hypatia was skeptical and immediately contacted Barnabas after Kit and the twins followed Shade into his tent. Barnabas then arrived with a pack of werewolves and Hypatia stood by while he called the Shadowhunters out. She seemed surprised when Kit, asked about his mother, stated that he didn't know who she was.
After Barnabas ordered the Shadowhunters killed, Hypatia did not join in the fight and cautioned him against fighting Magnus Bane when the latter arrived.
The next day, Hypatia was annoyed when Kit, Livvy, and Ty showed up at her shop to buy ingredients for Magnus. She agreed to help them only if they paid in gold, rather than mundane money. Ty asked her about a way to get to Cornwall, and she told him about an unregulated Portal in the London Institute.
Hypatia, like Barnabas Hale, is very businesslike and despises Shadowhunters as well as those who work for them. She is not above doing business with them though, as she willingly helps the Blackthorns procure ingredients for a spell, albeit for a large profit.
Hypatia has skin as dark as mahogany and bronze hair dressed high on her head, along with pupils in the shape of golden stars. She wears high heels and and a variety of fashionable clothes, including a white pantsuit and a black sheath dress. She is said by Kit Herondale to appear anywhere from eighteen to thirty.
- Immortality: As a warlock, Hypatia was granted immortality and does not physically age.
- Magic: As a warlock, Hypatia can use magic.
- Lord of Shadows (first appearance)
Hypatia was an ancient Greek mathematician, and the first woman to make a substantial contribution to mathematics.
The name Hypatia is derived from Greek and means "highest" or "defender". Her surname, Vex, means "to make someone feel annoyed or frustrated".