File:House of Salvation.jpg

Summary
So to correct the name, it isn't the House of Darkness, it has never been mentioned to be as such except here, and just because Eramis is the Kell of Darkness doesn't mean she commands the House of Darkness (looks to Skolas, Kell of Kells). The actual name is House of Salvation.

Edit: Anyone noticed that he's named after a Vandal from the SABER strike?