Marneus

Marneus is a mysterious agent of The Hushed, of whom the Eyes of the Archon know little, including his name. They first encountered him in the office of Alheim Cornelius, where he attempted to abscond with one of the Vestiges, before it was taken from him by Factus Formis. He is also responsible for the destruction of Savic Lofthaven II's bag of holding.
Later, he was seen in a vision conjured by Lucien Novelle alongside Constance and Claude. Marneus and his allies slew Freia Greymoon in cold blood, although were unable to recognize the Yellow Vestige after doing so, a mistake the Eyes of the Archon took full advantage of.