Even though his complete attention was on the human beneath him Xavier was aware about the presence of the people that had entered the room and were watching them.
A thunderous ground by the Alpha was enough to make them step back.
"Alpha," Augustus began, "we—"
"Leave," Xavier growled. "Now." He spat loud and clear. The alpha was not joking about his command and every one of them knew that he would attack them.
Reluctantly so, but everyone left the room after the command of the Alpha. No one could define the Alpha even if they tried their level best. The shifter inside them gave up too quickly.
Not to forget the fact that Luna's guard was right outside the door and they were pretty much immune to the commands of the Alpha when it was the matter concerning Luna's protection.