|Appears in||Arena, ESO|
Othrenis (alternatively called Eagle Moor[nb 1]) is a necropolis that is located in the region of Stonefalls, within the province of Morrowind. Othrenis houses various key figures during the time of the Chimeri, such as Mavos Siloreth, a highborn mage who was responsible for sealing the Brothers of Strife in the twin volcanoes of Stonefalls.
Sometime during the First Era, the Chimeri mage, Mavos Siloreth, had sealed Balreth, one of the Brothers of Strife, at the Charred Ridge and would die shortly after in an explosion. Siloreth was buried in Othrenis, in the largest crypt of the necropolis, which overlooked it from the south. Upon his death, Siloreth had summoned Skeletons to guard the necropolis so that no one would disturb him.
During the Interregnum in 2E 582, the Daggerfall Covenant had invaded the region of Stonefalls, having laid siege over the harbor-city of Davon's Watch. In order to break their siege, Tanval Indoril, the then Grandmaster of House Indoril, had re-awakened Balreth, who decimated the invading armada, however, Balreth had gone loose in the region of Daen Seeth, and so the Ebonheart Pact had sought a way to reseal Balreth into Ash Mountain. An Agent of the Pact had arrived onto Othrenis, seeking to re-awaken Mavos Siloreth and gain the knowledge to seal the Brother of Strife. After everything, the information necessary to seal Balreth was acquired and so the Pact was able to seal Balreth into Ash Mountain and continue their battle with the Covenant.