In the Demon Spawn War(89 GE - 269 GE), the Covenant built seven fortresses in and around the Ebonmurk Sea. Darkwatch, later to be known as Eclavfryn, defended against aquatic demons and hostile natives. These natives were peoples interested in only survival, preying upon the weak and wounded, and uninterested in helping the demons or the Covenant. Three of the top threats were the Lacedon crawling out of the Hall of Hades, great bands of Scrag, and often the most dangerous of all, attacks by teams of aboleth. The aboleth, Athena would write, are building an empire from slaves, a terrible people that even I see no value in keeping around when the demons are gone. On the other side of Darkwatch, patrols went north, purging the massive caverns that would later become the Great Tradeway, destroying the seemingly endless spawn of Zuggtmoy.
In 831 HE, Darkwatch was secured and resettled by colonists out of Filion'lyr. Renamed with the Drow word Eclavfryn, it became the first major port of the Ebonmurk in many thousands of years.
