Return to Stormwind and inform Highlord Bolvar Fordragon of the fate of Nathanos Marris.
<The blood appears to have completely drained from Flint's face.>
Na... Nathanos did this? Nathanos is the Blightcaller?
Why? He was... was so noble - a ranger lord respected by all. The only human ever allowed to train under the high elves. Now a ruthless agent of the Forsaken?
I... I am sorry to ask this of you, [player], but Highlord Fordragon must be informed of this turn of events at once. Please, return to Stormwind and deliver the news.