Very good, even if you felt that it was lacking. I admit that the blood potion was a bit contrived, but since they don't exactly cover blood magics at Hogwarts (explicitly at least) it isn't too bad. Emotionless Harry + Dursleys, argueably the best way to deal with them morally (as in 'I would hate you, but my doctor has been telling me I need to kick the habit, plus you just aren't worth my time anymore...).