Teleport to Kalrathia if your party is not already there and head down the stairs from the teleporter and then down the northeastern stairway, and head east past the fountain, then turn southeast at the far corner and speak to Berseba about Agarrus' Mace and listen to her dissertation, then agree to help to acquire this quest.

Return to the teleporter and go to Aman'lu and find Explorer Tai'esse seated at a table in the Tavern, which is due west of the teleporter. Speak to her to receive the Stone Key.

Teleport from Aman'lu to The Snowbrook Foothills and head north up the path behind the teleporter, turning southeast a little ways furhter at the two bare trees. Follow the path southeast to the central entrance to The Snowbrook Grotto. Enter and head east up the ramp and a short distance farther, where you may (may only be in the Broken World version) meet an Alpha Rugged Snow Kurgan to do battle with. Then take the south fork and follow the path southwest and cross the narrow ice bridge and you may (may only be in the pre Broken World versions) get to battle an Elite Snow Va'arth Bombardier. Continue southwest and as your party rounds a sharp bend, you'll begin to hear ice shards falling. Continue a short ways farther to the stairway leading downward to the south. Send your party down the stairway, and obtain the Chant of Magic Skill from the lectern to the east, then get the Chant of Melee Skill from the lectern to the south. Continue down the stairway to the west and open either of the doors in the double doorway with the Stone Key and proceed into the end of the area (be prepared to be set upon by a large number of enemies) to collect the Stone Tablet Fragment.

Return to Aman'lu and speak to Explorer Tai'esse, who'll downplay the danger of acquiring the fragment, then decipher the completed tablet and give it to your character along with the location of the mace itself.

Teleport to Eirulan and then to the Western Cliffs of Azunai. Head briefly west to the northern entrance into An Azunite Cavern, then enter and walk forward a short distance to the Azunite Ancestor, then turn west and traverse the path along the wall. Head northwest and find the switch hidden on the north wall of the small ruin near the bridge and activate it to extend the south bridge over to the tomb. Cross the bridge and clear out the Skath Zealots and Avengers, then break the rock covering the switch and get on the elevator and activate the switch to descend into The Tomb of Agarrus. Head north down the stairs and left click on the Ancient Stone Door to use the Stone Tablet to open the door. Continue north into the adjoining chamber and mount the steps up to the platform and speak to Guardian Magentus to hear a rather lengthy dissertation and receive the Mace of Agarrus plus some other treasure items, which completes this quest.