Study of Erennathnio
There is a study off the first sanctuary in the Valley of Totality. This study is called the Study of Erennathnio. Erennathnio was a Scholar of Radiance and when the first Nightmares came to the City, he wanted to find out how they should be dealt with. Like the Order of the Sable Moon still does today, he studied the Nightmares. However, unlike the Order, he quickly realized the true nature of the Nightmares and the way in which they threaten the Unawakened, his studies moved quickly to finding out how to Banish the Nightmares from the Dream forever. He conducted his studies in the room adjoining the ]]Sanctuary]] as mentioned before. When House Calenture created the Orb of Calenture to Banish the Nightmares Adreitith was not far behind them in his studies. Soon after Dreamers of Light created their Prime Artifact, Erennathnio created the Prime Artifact of the Protectors to Banish Nightmares.