Ythryn

Ythryn was one of the spectacular enclaves of Netheril that soared across the skies over a millennium before the Era of Upheaval. Like nearly all of ancient empire's flying cities, Ythryn came crashing down to Toril, remaining largely intact as a necropolis embedded deep within the heart of the Reghed Glacier in the far North of Faerûn.

The submerged ruins were regarded as little more than a tomb for the ancient Netherese, full of deadly magic awaiting anyone who sought its arcane secrets.

Description
As with other of Netheril's enclaves, Ythryn was powered by a single mythallar While its magic was the source of the city's ability to stay aloft, this power was negated by the presence of an ancient artifact referred to as the Spindle.

Geography
The final resting place of Ythryn was about a southeast of the subterranean passageways known as the Caves of Hunger.

Government
During its glory days, Ythryn was ruled by the Netherese arcanist Iriolarthas, who actually underwent the process of lichdom long before the city came crashing down to Toril.

History
When Iriolarthas and his apprentices first activated the city's mythallar and elevated the city into the skies, they traveled to the region of the continent that would later be referred to as the North. They searched for long-lost magics, that dated to the ancient giant realm of Ostoria.

Finally, in the autumn of the, they recovered the Spindle at the floor of the Sea of Moving Ice.

As the city plummeted into the glacier, the heat of the impact caused it to fall deeper beneath the icy surface. Once its descent was over, the Frostmaiden Auril covered the ruins in ice as a means to lay claim to the new prize.

During the crash, a single wizard's spire broke off from the city and plunged into the tundra of Icewind Dale.

Around the, three wizards of the Arcane Brotherhood, Avarice, Nass Lantomir, and Vellynne Harpell, made undertook an expedition to uncover the secrets of the frozen enclave. Th scholars sought a means to end the Everlasting Rime that plunged Icewind Dale into eternal winter.

Notable Locations
It was said that the portion of glacier above the necropolis could be parted by an inscription included within the Codicil of White, a holy book of the Aurilian faith.

Inhabitants
During this time, iron golems were also used as guardians and sentries.

Some of the poor wretched souls who survived the crash eventually succumbed to death by starvation, and transformed into shadows after their death. One such survivor Drakareth, managed to survive a bit longer by killing some of the other surviving Netherese, before becoming a wraith himself.

The frozen necropolis was overrun by nothivs,