Antoinette is a death row inmate at the Ashpit. However, that joins the prisonbreak party organized by Leovan al’Heartling (under his ‘Dark Passenger’ state), and proves a key factor in their release.
After pretending being Baron Ekdane’s sexual slave for a year to avoid the ‘phoenix ascent’, she captures him during the escape and feeds him to his werewolves. She joins the others at the Crossroads Inn, but refuses to help Richard Frates in his crossing of the desert, saying her duties are paramount, thus revealing herself as Sister Jeyne, a silencer. She accepts to give Leo a parting gift for their sexual intercourse, the identity of the man who killed his parents: a man going by the name Mortelle.