Trash
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As Maria advanced across the laboratory, which resembled more an underground dungeon rather than the labs she remembered from back in Earth, with labyrinthian passages and many rooms from the dungeon itself, she had already sent over a hundred B Rank Vampires inside her shadows, swiftly and stealthily taking them down one after another.
The Vampires had yet to find out what was actually transpiring, as things were happening incredibly fast. Any accessory left to detect anomalies were covered on "dust" which was actually Maria's own soot produced by her soul, which she delicately placed over the surveillance eye-shaped camera magic items.
However, eventually, some smarter ones would begin to realize something wrong was happening here…