Rebecca's condition was somewhat frantic, but she hadn't descended into madness, which allowed Alice to relax slightly ā at least she didn't have to guard against a lunatic sneak-attacking her from behind.
However, a little less pressure didn't make their situation much better. In the end, they would still have to make the very choice they least desired. After having obtained what she wanted, she might lose everything because of some ridiculous reasons...
Could such a person as herself catalyze an extremely formidable Mental Aberration creature? Whether the Mental Aberration creature would fall under the control of an Evil Spirit, she couldn't guarantee, yet when the time came, she could use some of the methods her mother had taught her to ensure the Mental Aberration creature would surely be the most insane.
That should be enough, right?