That's one of the things I love about "Embers" and "Enslaved" is that they delves into this uncomfortable arena. My ethnic background is mixed, and I have found that the cultural differences between races is startling, considering how mixed it is in certain places. My brother and his wife are a perfect example of this. You don't realize it until it's staring you smack in the face. And not only race, but economic status. It's interesting when authors delve into this and do it well.