Possession~
Arthur said making Luna look into his eyes, to find if he was genuinely saying that or was he lying?
"how do I believe you?" she asked, her voice laced with doubt. Arthur sighed and took out his phone calling someone, as the person on the other side picked the call Arthur spoke, "Doctor, remember the patient I told you about, is he treatable?" He asked the person on the other side and the person on the other side replied, "yes Mr. Lee, It is treatable, but that cure is only in america, and needs a lot of money and doctor's works."