Kra’s claws slid from their sheathes and clicked against the glass. The detective’s back was turned. So easily she could just slice open that vein. The one she could see pounding under his jaw. Pathetic human. He sweats under his clothes. Disgusting smells. Kra’s delicate nostrils flared, misting the window for a moment.
Sometimes her loyalty faltered when she was forced to deal so closely with humans. Duty over all. Duty. Never forget your duty.

“Miss. Please. Sit down.” the detective said quietly.

“I prefer to stand.” she snapped.

She controlled the burst of colour to her pale skin and turned to face the table. She tried her best to put a face on that appeared interested in what the human had to say. In reality, what the human thought did not matter. He was wrong on all counts. They refused to see what was really going on here on earth. The ones who did see were called crazy and put away in padded rooms and drugged until they could hardly eat on their own. So scared of something that was foreign. Anything different was banned, taboo, science fiction, fantasy.

She hid a smile at the thought of the reaction this human would have if she revealed her true self to him.
Duty, Kra. Remember your duty.

Kra compromised by standing at the table with her hands on the back of the chair that had been offered. The detective took this as a good sign and began his questioning. Kra answered using the correctly vague answers she had been taught. Nothing to rouse suspicion, no loose ends.
Keep the humans oblivious to the battle raging above their heads and under their feet.