Lilith felt fear, a kind of fear that came from the deepest part of her soul, something was whispering to her to not go against this man, to not look at him in the eyes, or else she'd die. This man was beyond her reach, he was the king, she should bow in submission.
Lilith gasped in amazement. As she knew what this feeling meant, this is called intent, there are different types of Intent: the more commonly known is Killing intent, people possessing this intent can use it to decide the outcome of a fight. The intent Alex seemed to be unconsciously using was different from that, it was the mix of Killing intent, King intent, and most importantly you can feel death aura from it. Never heard of such Intent, if one day he was able to control this intent it would be a dreadful thing, you will be robbed of your will to fight, your will to live, the weak-willed ones may die under such Intent.