I think there is a lot going on in this story that we haven't been told yet. Dan is excellent in hiding things in plain site. There is all the obvious stuff that have been mention in the above posts, but there is something else completely that I am curious about. His Aunt says something about him being raised with a different code of ethics and stresses that he will not use his abilities to compel people into doing things they wouldn't normally do. He(Worthington) seemed to have missed the meaning behind this but I didn't. I think this family has some kind of extra sensory perception thing going on. There were clues all over in this chapter. I think Worthington can feel peoples emotions, read their minds and project his will onto other people. In fact, I think the whole family can. It kind of reminds me of the movie, The Covenant. Old money, inherited power, family secrets so deep the make the grand canyon look like a regular hole in the ground.
Still though, this is the first chapter, and I might be reading way to much into things. We'll see how it all plays out.