We found the inner sanctum where Malofar keeps the Emerald Chalice, secured by a magical ice barrier. However, we also found ancient Nord runestones of a whale, an eagle, and a snake at altars throughout the caverns. These matched altars before the barrier and we guessed they were the keys to open it.
We placed all three runes and the barrier dropped. I created a distraction so that Amberic could get inside. It worked, but my wounds are too great. I hope Amberic finds me before the end, but I am fading fast.