Wow, Ein. Fantastic job on this. Really nice active voice descriptions. I suspected that Auris killed the first enchanter after the dream he had (and subsequently the second), but that didn't take away from the enjoyment of the story.
Just a few minor things I think need addressing. The first is that your first few paragraphs are too long. You get better as the story goes on, but the first page makes my eyes glaze over as they meet a solid wall of text. Definitely break those up a bit more. You also slip into present tense a few times. It's tempting to say phrases like "but
it’s best to show everything just as..." but the story and narration are in the past, so these should be as well.
“I suppose,” Mathias added, “that considering what I just said, this may seem a little hypocritical on my behalf.”
He slipped his hand in his pocket, producing a small amulet. It was silver and oval-shaped, with a pale sapphire in the middle. The sapphire was surrounded by inscribed glyphs, probably words in a long-forgotten tongue. But the glyphs looked peculiar, and the stone in the middle as well… the combination of the sapphire with silver looking like ice… It couldn’t be…
“My great-grandfather’s,” Mathias grinned. “Here. Have it.”
Okay, opposite situation here. ;) All these actions are performed by the same character, so I think you want this all one paragraph. Especially the first two, since I thought that because of the paragraph break the "he" in the second paragraph indicated Auris.
Minor nitpicks though... this is really nicely written and I thoroughly enjoyed it. Definitely post the ending letter thing as I'm very interested to find out what happens. :)