House Khone was one of the five powerful houses in Arathoxia, ruled by the Lord of House Khone, a Black Knight. It was also known as House Jet, after the black Mox which ended up in the possession of Liana of Minorad, and later stolen by Ravidel and used to activate the Mox Beacon.
The Black Fortress in Arathoxia was destroyed in Ravidel’s invasion of the city, obliterated by a blast from the Planar Barge. The Lord of the house survived, however, having left his fortress before its destruction.
After the ruin of Arathoxia, the Lord of the House relocated to his home in Golthonor, where he later refused to aid Jared Carthalion out of fear of Ravidel's revenge. It is unknown what happened to the House after that, and if it survived the Planeswalker War that followed.