Gronnsbane: The Blessing of Fire

Objectives
Follow the clue to find the Molten Shamanstone and receive the Blessing of Fire.
 * Receive the Blessing of Fire

Description
The weapon has been assembled, but it lacks the power that made it a legend. In order to restore it, you must receive three blessings: one of fire, one of frost, and one of beasts.

The first blessing mentioned in the journal is that of fire. The journal reads:

"He describes an ancient monolith, perched upon the edge of a precipice extending from the cliff where the searing magma falls into the sea. I believe the location he speaks of is just overlooking Tor'goroth's Tooth."

Rewards
You will receive:

Completion
The stone reacts to Gronnsbane, and you can now feel heat emanating from the weapon.

This must be the Blessing of Fire that Argoram mentions.