When the Erudites and the Heretics broke into war, there were those from both sides who wanted to escape the conflict and fled to the continent of Velious.  Using their combined magical might, they created the Tower of Frozen Shadow, a dark structure of monolithic proportions standing alone in the endless snow of the Iceclad Ocean.  In their retreat they felt they were safe to pursue their hunt for arcane knowledge and continued their lives in a society all their own.

Until a Tier'Dal master of magic and war named Tserrina found her way inside.

That was centuries ago...

What became of the Tower's once-thriving population is unknown; those who have entered to investigate have never returned, and those who stayed outside hear little but howling and the rustling of robes coming from its only entrance.  Magical attempts to see through its surface have all failed, save one, revealing a very different dark elf from the one that first entered...