Who is the real Xavier?

Agatha's screams for help were turned into muffled voices. She tried to shove the person away but his strength was way greater than her. From the look of it, Agatha was sure it was a man but who? Who would dare to attack her in the palace?

She was sure that no one noticed when she entered. As struggled to push that man away, a cold voice echoed through the chillness of the room. "Shut that damn mouth of yours!"

Agatha froze to her place at the familiar voice, she squinted her eyes trying to make a profile of the man standing before her. Once she stopped screaming, the hand over her mouth was withdrawn. Just as Agatha took a breath of relief, she felt a prick on her neck.

A small sharp dagger lingered on her neck, just one move and Agatha's throat would be slit. Her chest rose up and down, patiently waiting for the man to reveal his plan.