Lady Adel soon returned to Crimson Castle with her Uncle Bella and Aunt Bernice. The Grand Duke of Cui Si had been waiting there.
According to Cui Si's own boasts, when she had been "young," she "interned" for a while in the Moon Holy City of the Sanghai Empire and had developed her unique understanding of Death Psychic Power. Though she hadn't reached the level of a master of the Undead, she was still competent enough to check on Bernice's condition as an Undead physician.
Despite Cui Si's cryptic words, Murphy could roughly guess the truth.
Cui Si's "internship" in the Sanghai Empire probably wasn't a regular "Vampire exchange" program, and there was a good chance she had stealthily learned the Moon priests' forbidden knowledge in their Holy City, and, likely, she got caught before mastering it.
She must have made an equally humiliating escape, just as she had when she tried to steal the Holy Grail from the Elf Kingdom and got chased for her efforts.
