As the colossus falls under the weight of your attacks, you notice for the first time that it was holding a red crystal fragment.
While it was small and unnoticeable in the mountain giant's hand, it's a fairly hefty piece for you to carry around. It also suspiciously looks like it's a piece of the giant crystal in the middle of the ridge. It's most definitely a clue as to the strangeness that is occurring here, and you're sure that the druids at the Cenarion Post to the south will want to see it.
That's a big crystal you have there. Did you get that while you were up at the ridge killing colossi? Let me take a look at it.
Hmph. Just looks like a big lump of unrefined crystal to me.
Admittedly, I can feel a sickly, evil aura emanating off of it, but that's not exactly in my line of work. I'm just here to put an end to the mountain giant menace.
Upon completion of this quest you will gain: