Description
It all makes sense now. The shattered vessels, the runebinding rituals, the Abyssal's pursuit of death magic - Tidelord Brenin is creating runebound machines to breach Hammerknell!
Quartermaster Balint forged the hammers you took from the Grey Gardens into a Runeguard Hammer. Use it to destroy the machines, then confront the Tidelord.
Upon completion
What?! Tidelord Brenin had control of Gorvaht? It is astounding that Brenin mastered death to the point where he could compel a demon as powerful as Gorvaht. You are a true hero for destroying that beast. Gorvaht had plagued us for a century.
But what concerns me is this new creature, Estrode. She possessed Tidelord Brenin and ran off toward Stonekey Court?