The Black Stone Tower

The Varnhalt Frontier's own record of the Black Stone Tower — the obsidian spire in the region's eastern hills that repels the Fray, anchors Sera's former settlement, and was opened from the inside when Rook and Myx broke through to recover the third Shard of the Pattern. The Tower is the Frontier's single most stable structure and its single most contested one: every faction with an interest in stability has, at some point, tried to claim the ground around it. None has held the claim for long.