Lauren did not want to go to this extent. The talisman with the birth date and chart on it was even more effective. It would extract Greta from Ruby's body. However, due to the talisman's extremely powerful effect, after the talisman extracted Greta from Ruby's body, Greta's soul could only survive for 24 hours after it came out. After that, it would turn into ashes.
The other ghosts might still have a chance to reincarnate, but Greta would not have such an opportunity.
Greta's soul would disappear from the mortal world and be sent to hell. She would not be able to reincarnate, and she would continue to be tortured.
However, Lauren did not have any other choice. She knew that if the two souls continued to pull at each other in this manner, Ruby's soul and body would suffer great damage. Moreover, this kind of damage was irreversible.
Ruby was still too young. She definitely would not be able to use her own strength to resist Greta.