Micah did not expect this to be the answer that he would receive. He did not expect that it was Caius who had specifically told the little vampire queen to do so. No wonder the little girl looked and felt quite similar and familiar to "someone" with her show of actions and words. This was all because she was taught by Caius, the vampire king himself.
The sentence that the little girl had uttered to Duke Windsor had simply turned into a much cuter version than the original one, which simply sounded less threatening than when Caius spoke it himself. Yes, if Caius were to say them, then it would have been a murderous sentence full of threats. One would need to simply lay low to be able to blend into the background to guarantee one's life.