The Sôvuk Sea Gate once served as a rift between the Abyssal world Kurun'Ush and the world Bal-Kriav. The architect of the Sôvuk Sea Gate was a powerful demon wizard named Gorag'theg. His knowledge of necromancy was so great that he figured out a way to use soul energy to power the Manes Chimneys, better known today as the Bone Rigs.
This gateway to the Abyss was opened during the Demon Spawn War. It opened in an underwater grotto under the island Torvild. A tunnel was then dug from the grotto on a westerly course towards the waters of Morwuld Briin. The Manes Chimneys were erected to serve as both protection against the angelic armies and for funneling soul power into keeping the gate open. In the Demon Spawn War, angelic armies assailed the area many times trying to breach the Manes Chimneys but could never overcomes the area's defenses. All during this time, weave spiders tirelessly worked to repair the Web and thereby close this rift. The weave spiders could not close it as long as it was powered by seemingly endless soul energy. The one thing they did do is help burn down the soul energy. After 19 years, the Manes Chimneys started burning out for lack of soul energy. The demon lord Gorag'theg had finally used up his entire supply of manes. In an effort to get more soul energy, he went to war across two Abyssal worlds.
If Gorag'theg had succeeded in securing more souls, the Demon Spawn War would likely have went on for another decade and who knows what could have happened during that time - perhaps even the loss of Bal-Kriav to the demons.
It is fortunate for us, that the demons spent as much time fighting amongst themselves as attacking us.
Today, Sôvuk Sea Gate is a closed gate. It is a difficult area to reach, with the long dark tunnel to it suffering from time and the currents.