Khyrus's thoughts seem to go in circles a bit; he's repeating alot of the same thoughts: "he didn't think the mage would kill him - unless that was what he was planning now - but the mage seemed to need him for something - he didn't think the mage would kill him - etc" This cycle gets repeated quite a bit
You've also got a fair bit of monologuing going on here; you're spending a lot of time relaying to us Khyus's exact thoughts. I would try to cut back on this a bit, as I don't think overusing this technique is terribly effective. (I've already ranted at Chaos about this, so I'm not going to do it again. XP) A good place to start cutting back would be, again, bits that are kind of repetitive. Khyus thinks as he's trying to push the tree over that it's like remembering something that he'd forgotten. Then Quinn asks him to describe the sensation he felt t rying to push the tree over, and Khyus gives him the same thought, nearly verbatim. This happens later as Khyus walks by the bones again, he thinks that they don't seem nearly as sinister as they did this morning, and then the same thought comes up again later in the narration (not in the underlined bits). There are some other examples of this, but I won't go through and track them all (unless you particularly want me to, I guess).
I like the personal touch you've added to your magic system. Then again, I would, because the magic system for my first novel has something similar--even though it's completely different.
I didn't think that this chapter felt too infodumpy. The "apprentice" trope, if you want to call it that, is a common one because it works. That said, it might not hurt to cut down a bit on Quinn's (sometimes long-winded) explanations and show us more of what's actually happening; summarize the dialogue and show us the scene, rather than the other way around. Also, I think that it will be fairly easy to cut down this chapter's length some, which will also make it seem like less of a slog.
Regarding chapter length: This is entirely a matter of personal taste, of course, so feel free to take what I say and toss it right out the window, but I don't see what's wrong with longer chapters in general, and I don't see what's wrong with this one in particular. I didn't see an obvious place to split it and I don't think that tacking the first scene of this chapter onto the last chapter would work as well as the way you have it set up here. I would just not worry about it. (Then again, I also have chapters in my novel that are 9000 words long.) Of course, if you're attached to the idea of shorter chapters, remember that you should also be able to cut this chapter down in revisions.
You've answered one of the questions that I had about Khyrus nicely (the bit about him breaking his house with magic. I assume from that that he lived alone) but I still would like to know a bit more about how magic fits into society, how common it is, and how it's regarded. Obvoiusly, that can't fit in this chapter, but I would like to see some more hints of it soon.
A few responses to what others have said: The first sentence that falcon quoted threw me off too, for more or less the same reason.
I was also a bit surprised at first when Khyus first ran into a servant; I'd assumed at first that Quinn's place was entirely isolated. Also, now that I'm thinking about it a clearer description of the inside of the place might be in order. As Cynic has pointed out, we don't really know whether this place is fortified, or just for show, or what.
Cynic is right in that this chapter contains basically no plot, unless maybe the bones are as important as he thinks they are. Still, that isn't much to chew on and there's still no forward motion. Since this is just one chapter (and especially if you cut it down in revisions) I'm not sure that it's a problem, but it does mean that you're going get the Plot in gear PDQ.
Also, we have Quinn and Khyrus. You say the point of view in the next chapter is an expert Deviator (who may or may not be Quinn) but either way, are there any "normal" people in your story?
As Frog has pointed out, we really really need some grounding in your story. We haven't had a lot of time to get acquainted with the world. In the first chapter Khyus is running, in the second he's completely isolated from, well, everything it seems.
I know Khyrus isn't paying much attention to the surroundings; I buy that. But to completely
not notice the presence of other people seems a little extreme, unless they're ninja servants.
Ravenstar makes a fairly good point about tension--I didn't notice while I was reading, but upon reflection I think she's right. I think perhaps it's that you don't touch on Quinn's apparent change of heart at all until the end of the chapter, which is the only place where Khyrus notices it and starts to worry about it.
I think that this may be fixed, again, but cutting out some of the exposition and giving is scene instead. For one thing, I assumed that Quinn was still being grouchy and abrasive about everything that Khyrus did wrong, because you didn't tell me otherwise (until the very end, again, when Khyrus starts actually worrying about it). I know that Khyrus is caught up in learning magic here and that's fine, but I don't think you have to do much. I think you could be subtle about Khyrus's unease early on in the chapter as long as you show us how Quinn is behaving. Quinn is a very, ahem, distinctive character. A turnaround like this is something I can more or less promise you that we'll notice.
You commented on this being a basic description, meant for someone who knew nothing about Deviation. That's a legitimate reason to describe your magic the way you have, but if it threw someone, then do remember you won't always have the opportunity to tell someone, "oh, that's in the next chapter". I didn't have the same thought, to be honest, but others very well might and it could be damaging to their perception of your book if they think it's a big sticking point.
Anyway, despite a slightly lengthy critique (omg! your wordiness is catching!*) I did enjoy the chapter and overall thought it was fairly strong. Keep it up.
* Just kidding. I've always been wordy.