It was starting to grow dark out while Lavi was wandering down the hall, his head in a book as he tried to unlock the mystery behind the two new "exorcists". He heard someone coming towards him but didn't really pay attention until he ran right into them. The book flew out of his hand and there was a loud clatter the tray the person was holding fell from his hands.
"Oh, wow sorry!" He said, but watched as in one fluid movement, Sebastian caught everything. Lavi froze as he realized he was face to face with the very person he had been investigating.
"Anything the manner, young bookman?" the tall male asked, looking down at him when Lavi just stood there. He handed the boy the book, noticing the title. "Breeds of Immortals? Interesting reading choice," he commented.
"U-Um, yeah…just for fun!" Lavi stuttered and started to walk away before he paused. "Wait, actually I had a question for you," he said, gathering his courage.
"Yes?" The butler asked, turning back to him with a fake smile on his face.
"What are you?" Lavi growled and Sebastian paused.
"Why, an exorcist of course" He said simply.
"No, I mean really. You clearly are not an exorcist, but Allen says you are not an akuma, so what are you? A Noah?" He growled.
"A Noah? As in the Noah family?" Sebastian said with a dark chuckle that made Lavi's skin crawl. "Tell me, young bookman, do you know that there are more than one type of demon in this world?" He purred.
"What? Like more than four levels of akuma?" Lavi questioned and Sebastian's eyes flashed, making him step back.
"Do not insult me by calling me such a low leveled, filthy creature," He snapped and Lavi was now sure that his eyes had changed as they were now glowing brightly.
"But, if you're a demon then Allen would have seen the soul trapped inside you!" Lavi growled, no of this making sense to him.
"I said there are other types of demons did I not?" He said with a smirk. "I am not made from some pathetic human soul and was not crafted from your Millennium Earl. I am a beast from hell, young bookman." Sebastian said with such a calm, human tone of voice that it even more disturbing.
"T-T-Then what are you doing here?" He stuttered as he tried to keep a strong tone but it faltered from his own fear.
"I am currently in a contract with the young earl and will stand by his side until the day I consume his soul. He is under orders to investigate this establishment so therefore, so am I. Now I need this to continue on smoothly for I am sure that if your little "friends" discover what I really am they will try to end my life and possibly my master's. I know they cannot kill me, but I shall not stand for any harm to come to Ciel, so if you try and tell any of them, I shall make sure to make your precious friends lives in a most horrifying way. Besides, you are a bookman are you not? You are not supposed to interfere in the actions of war, so please, if you value your friends' souls, keep silent. Understood?" Sebastian said, looking down at him with a smile that made Lavi realize that he now had elongated fangs.
"Y-Yes. Of course," he whispered, cowering back as his eyes locked on the fangs. The moment the words left his lips, Sebastian stepped away and everything returned to normal; the glowing eyes and fangs were gone.
"Farewell, young bookmen. Have a good night," the demon said before disappearing down the darkness of the hall.