1.16 - Statue to Meridia / Kilkreath Ruins - The Elder Scrolls V: Skyrim wiki
This site is inaccessible until Daedric quest The Break of Dawn. It is a lengthy draugr dungeon with a special kind of puzzle involved the whole way. Defeat Malkoran and claim Dawnbreaker, the sword granted you by Meridia.
Skill Book: (Block) Battle of Red Mountain (found in the upper levels of the large pedestal chamber, in a dark corner)