Guild Wars 2 – Twilight of the Wolf

Choosing to side with Eir Stegalkin you will be sent over to the Wolf Lodge. Inside you will find Fastulf Jotharsson. Talk with him to begin the quest itself:
Fastulf Jotharsson: “Greetings. I am Fastulf Jotharsson, Speaker of Wolf for Hoelbrak's lodge. Why do you seek the spirit?”
Hero: “I bring news of danger. The jotun leader of Osenfold Shear now worships the dragon. I need Wolf's advice, and his blessing, to defeat such a powerful foe.”
Fastulf: “Quite a challenge. I'll envy your tale of victory! More, though, your arrival is a sign of Wolf's will. Only this morning, a scout reported that the Sons of Svanir have corrupted one of the local pack alpha, a wolf known as Ormi. Ormi is beloved of Wolf, but he is lost. His spirit must be set free, and his sickened body destroyed. Do this and Wolf will repay you with the strength to best your Jotun quarry.
Hero: “I'll do it. Tell me where to find Ormi and I'll release his spirit into the Mist.”
Fastulf: “Go to Dragon Hollow. I'll send word for Eir Stegalkin to join you. She has often fought against the Dragon's corruption. Good luck, Slayer. Return when Ormi is at peace.”

Head to the Northwest from Wolf Lodge over to the trail North of Snow Leopard Lodge, leading toward Veins of the Dragon. There you will find the entrance to the instance itself.

Head inside and down the tunnel in front of you. Eir Stegalkin will meet you at the end of the tunnel. Continue on to the North. You will find Ormi without any difficulty. He has gone completely wild and even attacks the Sons of Svanir who corrupted him. Now this can be a very hard fight if you do not keep some distance and stay mobile. He is a level 10 foe. Ormi can be defeated easily this way. Any chances you have to cripple or lock him down are great. Avoiding damage is not bad edge. Keep dodging and let Garm pull some aggro need be.

After the fight you will need to speak with Eir Stegalkin:
Eir Stegalkin: “Such a noble beast, ruined by Jormag. Did you see the wolf's eyes, so full of pain and fury? The Sons must be stopped, and they must pay for what they did to Ormi.”
Hero A) “They will. By all the Spirits, I'll see that Ormi's suffering is avenged.” (Ferocity)
Hero B) “At least Ormi can rest. I'll give the Sons some sleepless nights in his honor.” (Dignity)

Either way you will now need to fight through a number of waves of Sons of Svanir. They cap out at 5 Sons per wave but will not relent for at least 4 waves.  Just keep the fighting up until they have all died.

Now it is time to return to the Wolf Lodge and speak with Fastulf again.