Rin Duoctane in the sewer of Dalaran, always loves to introduce people who love explosives to K3. Accept quest1 from him, flying to K3 in the north of Storm Peaks. You can also refuse this quest, just go to K3 directly. The air in the sewer is really very bad. This K3 quest is very interesting, offering guide for the two main quest on this map.
Arriving K3, bingding Hearth Stone, open the route, accept 22.214.171.124.14, you can finish quest 2.3 on the way to do quest 4 .
Deliver 2.3.4, accept 5.8 .
Do not deliver now, when finished, it turns to be daily quest Overstock .
Do not deliver now, accept 9.10 .
When you are doing 9.10, Injured Goblin Miner at Crystalweb Cavernwill give you quest 11 .
Deliver 9.10, go to finish 13.14 .
Deliver 126.96.36.199.14, accept 15, and you can also accept Leave No Goblin Behind, keep it .
When you are doing quest 15, you can accept 17 from Gino from Garm's Rise .
Deliver 15 and accept 16 .
You can finish 16 and 17 together .
Go back to camp to deliver 16.18 and accept 19 .
Accept quest 20, the rocket will take you to Grom'arsh Crash-Site automatically .
If you happen to have 10 Relic of Ulduars in your package, you can finish Rork's quest Ancient Relics directly when you arrive at Frosthold, then you can get Relic of Ulduar to exchange buff items with him .
When open the route for Grom'arsh Crash-Site, return to Brunnhildar Village .