Investigate the Shards of Myzrael.
Ancient stones are strewn across this land. The elements flock to them, surrounding them protectively.
These are sites of great power, and the largest is just west of Hammerfall. Not a soul trespasses, but if you go there alone, you can hear whispers from the earth itself.
I have not visited there in a long while... but our grunts have told me the whispers have started again. Would you look for me? Will you see if the stones still speak?