Nevertheless, Harry isn't free. Just for a current example, there's the compulsory marriage to Lara. At the end of Battleground, Harry is musing about just how trapped he is.
No, he isn't free, but none of us are really, it depends on how you look at it. We have to see how this latest order from Mab plays out. At the moment it is an order, but nothing that simple for either Harry or Lara, neither responds well to "orders." Yes, there is a physical attraction there, part because there just is for a number of reasons and part because of White Vampire "chemistry" or whatever it is. Yes, it is an order, the inclination of both Harry and Lara is not just to say "no" but "HELL NO!" However both Lara and Harry are very rational beings, and even if it doesn't seem that way now, they do have a series of choices to make based on whatever information is required. If both can see a real need for this union, it will happen, because it must happen. If both cannot see a real need for this union, it won't happen no matter how much pressure Mab cares to lay on.. And if it doesn't, she will smile and say," at last the Knight I've been looking for.." I wouldn't at all be shocked if it turns out to be just another one of her little tests and exercises that she feels are needed to shape the star born one destined to lead the troops in the final BAT.