Into the Depths (Sunken Temple)

Objectives
Find the Altar of Hakkar in the Sunken Temple in Swamp of Sorrows.
 * Atal'ai Stone Circle (provided)

Description
Inside the temple, I found a circular room with six balconies, each one with a serpent statue on the edge. Curious, I pushed one of them to see what would happen, and it was a trap! I nearly fell to my death from the explosion. Laying [sic] there on the ledge, I looked down and noticed that there was another statue at the base of the room; an altar of sorts... Hakkar, I think it was called.

I think that this altar is the secret—you must bring this token to the altar in the Sunken Temple.

Progress
Upon examining the statue, you notice a depression in its side, just the size of the token that Marvon gave you...

Completion
You push the stone circle into the opening, and you hear it lock into place.

Now that the stone is in place, you may continue... but what should you do next?

Perhaps you should examine this altar further...

Progression

 * The Sunken Temple (quest)
 * The Stone Circle
 * Into the Depths (Sunken Temple)
 * Secret of the Circle