He must've been too disgusted by her to say a lot of words. But sometimes, words are not enough to express one's anger and disgust.
Senator Rizza raised her head to look at Arthur. "Can you...let...me go? I-I'll pay...what...ever amount. What...e-ever y-you wants." Senator Rizza stuttered. This is her last chance to plead. Because it seems that tomorrow, her nightmares will turn into reality.
"Whatever we want?" Arthur asked, then cocked his head.
"I'm afraid, we'll never get what we want if we let you go." He said in a cold tone because what they want is for her to suffer.
"And besides, Doctor Miller and Doctor Taylor will kill us if we release their lab rat," Felix added with amusement. It seems like Senator Rizza finally realized what she got herself into.
Without a word, Arthur turned to leave.
Seeing that they are already done, Felix said. "Rest well, Senator Rizza." Then they followed Arthur.