One of the Jacks, a changeling Privateer family that hunts its own kind for the Gentry.
Black Jack was not present at the May Day massacre, however-- she seems to spend much of her time wandering dreams, which is where Cassiel Montague found her, deep …
Young jack is a member of the Jacks, though he was not actually present at the May Day Massacre in Memphis. He, instead, was tasked with robbing the Spring Court of all its valuables-- and got lost there, within the goblin-engineered traps left behind. …