He moved away from her in disgust and also in fear of killing her on the spot if she ever opened her mouth.
Then he heard Kevin's voice as he put a hand on his shoulder, "She won't say anything. Unless you have special means to interrogate her, you won't get anything out of her. But we have to keep her alive; even you must have realized how precious her life is. We could use her as a bargaining chip if something goes wrong."
Alyssa then asked him, "How did you know? How, in less than an hour, did you manage to unmask me when they hadn't suspected anything for 20 years?"