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“The sons of iron have used their runes to enthrall many of my brothers and are using them to break the siege on Thor Modan. I wish we did not have to fight them, but we have no choice. My giants will not hold out long against them. I have imbued this earthen shard with a blessing that will aid our allies. Take it with you to the battle in the Boulder Hills to the north, and use it to reassure and fortify my brethren.
Kill any iron dwarves who would stand in your way.”
-Kurun
Use the Shard of the Earth to rally the Grizzly Hills Giants fighting in the Boulder Hills, kill any iron dwarves who oppose you, then report to Kurun on the hill overlooking Thor Modan.
Provided item:

You will be able to choose one of these rewards:
You will receive:
Upon completion of this quest you will gain:
Quest Giver: Kurun — Thor Modan, Grizzly Hills [65.7, 17.7]
Objective: Use the Shard of the Earth to rally 5 Grizzly Hills Giants, kill 5 Iron Rune Avengers, then return to Kurun.
Quick Facts
Walkthrough
Getting to the Battle
Using the Shard
Staying Alive
Efficiency Tips
Lore Context
The iron dwarves of the Iron Rune clan have used runic magic to enthrall Kurun’s stone giant brethren, turning them into the Runed Giants fighting against their own kind. This quest is your first direct intervention in a conflict that has raged for thousands of years, with stone giants besieging Thor Modan to prevent the iron dwarves from rebuilding their ancient capital.
The Iron Rune Avengers shout “For the glory of Loken!” when they attack. This is an early breadcrumb connecting the iron dwarves to the corrupted Titan Keeper who serves as the final boss of Halls of Lightning and whose death triggers Algalon the Observer’s arrival at Ulduar.
The chain continues through Gavrock and eventually reveals how the iron dwarves use Runes of Compulsion to enslave the stone giants, culminating in “Free at Last” where you break the enchantment entirely.
Explore Grizzly Hills’ hidden easter eggs, lore mysteries, and connections across Warcraft history in Vikstone’s Grizzly Hills Chronicles, along with the complete quest storyline.
Vikstone's War JournalKurun held out an earthen shard. “The sons of iron have used their runes to enthrall many of my brothers. They use them now to break our siege. I wish we did not have to fight our own kin, but we have no choice.”

His free giants were losing.
“This shard carries a blessing,” he continued. “Use it to fortify my brethren. Give them the strength to fight on.”
The Boulder Hills was chaos. Kurun’s giants clashed with their runed brothers, stone fists crashing against stone flesh. The friendly giants were being driven back, their wounds slowing them.
I went through them with the shard raised high. Where its light touched, wounds closed. Giants grew in size and strength, their roars renewed. Iron dwarves rushed to stop me, and my axe answered each one.
When I returned to the ridge, Kurun nodded.
“You have given our allies the strength to fight on. Even so, we must plan a way to end this battle before we are overrun.”
The war for Thor Modan was far from won.
The giants are rallied, but boulders and reinforcements won’t break the siege alone. Someone small enough to fit inside the tunnels needs to cut the head off the iron dwarf command in Into the Breach.