Location: This quest takes place in Ashenvale.

Shortly: Gnarl at Warsong Lumber Camp wants you to use Gnarl’s Bough to close 10 Demon Gates.

How to: Go southwest, pass the river and enter into the canyon. The Gates look like green light sources coming out from the ground. While doing this quest one of the demons will probably drop Diabolical Plans that will start the Quest: Diabolical Plans.

The Rewards are 13 silvers and 250 reputation with Darnassus.