The Deed for Dorthas

If there is one thing I have learned here on Azeroth, it is that everything comes at a cost. If you want information on the Flame of Dagnoth, I require some showing that you are on my side, and not some enemy agent in disguise.

That seems like a fair compromise, yes?

I require you to head to the Badlands to the southwest, and locate the presence of Black Dragonkin at Lethlor Ravine. I have heard rumors that their scales are enchanted with latent draconic energy. Bring me one such Ensorcelled Whelp Scale from the Scalding Whelps, and you shall have the information you request.

Has the scale been acquired?

Well done, you have proven yourself a capable adventurer! You have done me a good deed, and for that I will offer you the information you seek.