A man slowly entered the dark room illuminated by green small firelights from the walls. In the center of the room was a pool of green, almost fluorescing, liquid, which released some bubbles once in a while.

He stopped behind the crouching masked man beside the pool, who was taking a sample of the liquid with a tiny vial.

"Zero, what a great timing. Take a look at this, isn't it beautiful?" Beelzebub held up the vial in front of Zero and shook it lightly.

Zero's uninterested face was seen through the green liquid, since it was almost transparant.

"Not really."

"Don't you think this color is matching my attire?" Beelzebub stood up and held the vial close to his black robe.

"Not really."

"Can you say anything else then 'Not really'?"

"Not really."

"Boring." The prince pouted and turned around, before pouring the liquid in the pool and giving a sigh.

"Even though it's pleasant to the eyes, its function is useless. There's still a long way to go before reaching the final product."

Beelzebub then destroyed the container and turned to face his most trusted man. He knew that he had something to report, so he shouldn't waste to much time in case it was urgent.

"One of the spies in the Celestial Royal Palace has reported yesterday about witnessing the Imperial Physician being called to the Imperial Study, while the Celestial Emperor was there. In fear of being discovered, the spy didn't eavesdrop on the conversation. He did however report that the Imperial Physician stayed for a couple of hours before leaving."

"A couple of hours..." Beelzebub narrowed his eyes as the air grew heavy.

"Did the spy notice any changes in the Imperial Physician's face or body language after exiting the Imperial Study?"

"Nothing." Zero said as he shook his head.

"Have we received any reports on possible health issues concerning the Celestial Emperor?"

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"We haven't."

Silence filled the room. Eventually, Beelzebub twisted around to stare at the green pool.

"Transfer my message to the subordinates in the Celestial Royal Palace. They should keep their eyes open for anything unusual about the palace and especially concerning the Celestial Emperor. If they notice anything, they shall immediately report back."

"Yes, your Highness."