It took ma a while to figure this quest out too, you have to do the Gnome quest chain in Darkshore (contaminated crawler meat -through- the Cause of Contamination), the rescue 4 injured Night Elves quest and the Grimclaw Quest chain, then the Ranger will give you the quest to talk to NE at northern outpost, get the quest (Collect 10 Relics) then (6 Shaman Pendents) that should give you the (Shattering Arrowhead) you need and you get quest (The Front Line) go into Shadowspear Area and talk to NE party outside cave, you with get quest to kill the Troll Leader and loot the (Letter quest) to get (blue items).
Completed it on my lvl 10 gnome rogue, so its not a racial quest chain.
I know it seems a little much, the first time i tried it, i took short cuts and got nothing. Second time I did every quest in the area, and that worked.
(Lor'danel)
Dentaria Silverglade-[The Last Wave of Survivors]
Ranger Glynda Nal'Shea-[Threat From The Water]
Wizbang Cranktoggle-[Buzzbox 413] -> [No Accounting For Taste] -> [Buzzbox 723] -> [A Cure in the Dark]
(Cliffspring Hallow)
Tharnariun Treetender-[The Coruption's Sorce]
(Lor'danel)
Volcor-[A Lost Companion]
Cerellean Whiteclaw-[An Eternal Love]
Ranger Glynda Nal'Shea-[The Final Flame of Bashal'Aran]
(Ruins of Bashal'Aran)
Keeper Karithus-[Unsavory Remedies]-[Ritual Materials] and Serephine-[Twice Removed]) ->[Ritual Bond]->[Grimclaw's Return]
(Lor'danel)
Ranger Glynda Nal'Shea-[The Shatterspear Invaders]
(Ruins of Mathystra)
Balthule Shadowstrike-[Remnants of the Highborne]
Sentinel Tysha Moonblade-[Shatterspear Loborers]-[Denying the Manpower]
Morra Starbreeze-[War Supplies]
Balthule Shadowstrike-[On the Brink]
Morra Starbreeze-[Strategic Strikes]->[The Front Line]
(Shatterspear Vale)
Huntress Sandrya Moonfall->[Ending the Threat]
Jor'kil The Soulripper (LOOT)-> Hellscream Missive->[Disturbing Connections]
(Lor'danel)
Ranger Glynda Nal'Shea- [Silver Embossed Boots] or [Silver Scaled Belt] or [Silver Embroidered Cloak]
THERE YOU GO