Capture
After discussing a few particulars, Tanya drew the circle around Sirene. As this was a single person targeted spell, it required more work than the usual capture spells Leona had her cast for decades. Once it was done, she didn't give Sirene a chance to second guess herself, and snapped her fingers.
Sirene felt a warm sensation come over her, like someone was hugging her mind. She felt like she should trust Tanya with her life, and wondered why she ever doubted Tanya to begin with.
"How do you feel Sirene?" Tanya asked.
"Like I had been missing something for my entire life." Sirene said, smiling dreamily.
"Sit down for now." Tanya said, gesturing back at the chair.
"Yes, of course Mistress." Sirene answered, sitting in the chair promptly.
Tanya looked slightly unnerved for a moment, but then the thoughts came creeping in. Maybe she could convince Lady Eigengrau to leave Sirene like this. Maybe the monster was more of a part of her than she was willing to admit. Maybe she could be the one on top, for a change.
"Lady Eigengrau." Tanya said.
"Do not undo it." Eigengrau stated flatly. "You will need her to help you kill Leona Barclay, and she will be enslaved by the mansion's magical circle immediately if she steps foot on its grounds. Unless a stronger spell is already in effect."
"You want me to keep her like this?" Tanya asked, gesturing at Sirene, who looked at both of them with a pleasant smile and vacant eyes. "I don't mind having a completely obedient bodyguard, of course."
"Think of it as a test. You have every incentive to kill Baroness Leona Barclay, and once she lies dead, Sirene will be freed. She will remember how you treated her during that time, so if you treat her badly, she may choose to imprison or kill you."
"My Master is right, Mistress." Sirene added. "My sense of duty toward law and order is very strong."
"Do you wish to be freed?" Tanya asked. This was important, and a good indicator of if the spell was working.
"I live to serve my Mistress, I do not need freedom." Sirene answered, waving her hand dismissively.