The golden spider of House Mars who finally strikes, luring Darrow into a night ambush, murdering Lea, and fleeing when the kill fails.
Once Darrow becomes Primus, Antonia at last tilts her head in grudging approval — then betrays him utterly. With Cassius sent to the Greatwoods and Sevro away, she and her henchmen Vixus and Cassandra use the Dreg Lea to lure Darrow from the castle at night with a lie that Roque has fallen into a crevice. Armed with nightOptics — a gift from a Proctor or a bribe from the Jackal — they hunt him in the mist while he hides beneath ferns.
When taunts fail to draw him out, Antonia coldly cuts Lea's throat to punish his silence, then withdraws. Having failed to kill the Reaper, she never returns to the castle, fleeing with Vixus and Cassandra to parts unknown — the longest, coldest game of all now turned openly murderous.
A cruelly beautiful young Gold woman with high cheekbones, a smirking mouth, and cold scornful eyes; long, full, richly golden hair; tall, gliding like a golden spider, never a spot of dirt on her.
The scheming spider of House Mars, now an open traitor and murderer on the run.