Video Guide: https://www.youtube.com/watch?v=T9zNoh-wWaU
Accept the quest, As the Smoke Rises, from [npc=79573], in Fort Wrynn, at coords 69.5, 21.5.
1. As the Smoke Rises - (Video) - Exit Fort Wrynn, to the east, and follow the paved path south to coords 73.1, 38.7 and turn in the quest to [npc=75896], and accept Burning Sky and Pieces of Us.
2. Burning Sky - (Video) - Follow the paved path southeast, into Aruuna, to coords 76.3, 42.7, killing 12 Adherent Invaders ([npc=75283], [npc=75290], or [npc=85434]), while completing quests in this area.
• Accept the quest, Barum's Notes from a book, on the ground, at coords 76.3, 42.7
3. Barum's Notes - (Video) - Click the items at the following coords:
• [object=225776] (green crystal) - 75.6, 44.0 (inside building whose entrance is located at 75.9, 43.9).
• [object=225773] (red crystal) - 76.2, 44.3
• [object=225774] (white/light blue crystal) - 77.5, 41.4
Pieces of Us - Click the items at the following coords:
• [object=225748] - 75.5, 44.1 (inside building whose entrance is located at 75.9, 43.9).
• [object=225745] - 77.5, 41.3 (on a table next to some railroad tracks).
• [object=225746] - 77.9, 43.0 (on a chair next to a table).
• Speak to [npc=75311] at coords 77.7, 43.9 and accept Pyrophobia.
4. Pyrophobia - (Video) - Enter the building entrance by [npc=75311] and defeat [npc=75302] inside.
• Turn this quest in to [npc=75311], and accept What the Draenei Found.
5. What the Draenei Found - (Video) - Travel down the steps and following the railroad tracks, on the right, at coords 77.8, 41.3 to Aruuna Crystal Mine whose entrance is located at 78.3, 35.5.
• Follow the path inside the mine, crossing a "bridge" at 81.4, 37.6.
• Click the [object=224825] located at coords 82.7, 37.9.
• [npc=75469] will show up, transform "herself" into [npc=75514], and transport you to Terokkar Refuge.
• Travel east, across the water, to coords 76.7, 55.2 and turn in Pieces of Us, Burning Sky, and Barum's Notes to [npc=75913].