Heroic: Rabbini vs. the Cold Mines

Description
This is an optional repeatable quest that you can take from the Van Owen Rabbini  NPC, which can be found near the entrance of the Ruins of Matren dungeon in Hakanas Highlands.

''Stock your bags with the best items, carried to you by only the most pious Rabbini! Of course, we only deal in special coins, as is proper.''

Upon accepting
To complete this quest you will have to defeat Chief Sinthan in the heroic difficulty of the Ruins of Matren dungeon.

''Look here. Simply because the yetis are covered in fur, that does NOT mean you can put them in the same category as the sophisticated gentlerabbits of the Rabbini! For one thing, Rabbini fur is soft and luxurious, while yeti fur is coarse and smells of bovine excretions. Take Chief Sinthan, for instance. The beast squats in his mines, causing all manner of trouble for the honest, hard-working Rabbini of civilization! If you're game for a touch of work, I'd like you to evict the yeti from the premises.''

Completion
Another job well done.

''Have the mines been de-yetified? Very good. Take these coins and, when you spent them, recall the kindness and good graces of the Rabbini.''