I was running around Evendim and I found an angry hobbit who apparently got his prize pipeweed crops destroyed by a Mysterious Relic that gives +1 Dread to anyone who comes near. When I right-click it, I got a quest to talk to that angry hobbit, who complained, and then I got a new deed, which told me to find all 7. Where are these?
This sounds a lot like the Mysterious Relics deed, but there's only 5 mysterious relics (linked page has detailed maps to each one):
Each one also corresponds to a different Gaunt Lord, in the related deed In Their Absence, although the two deeds are not otherwise related.