I don't remember if this is true or not, or if it even gets explained, but maybe the reason she was released was because those in charge of her and the tests she was doing were all squished into a fine paste by her new master. The stuff she was doing could've been so confidential that very few knew the nature of her work, so they were fine with getting rid of her
Or the curse on her was supposed to kill her if she spilled
Edit: I finished the chapter and was already proven wrong
