Witchcraft made my sister glue her daughter's eyes

I am suffocating and tired of protecting my sister. She has been bewitched and we noticed when she cut off her daughter's ears and glued both her eyes shut. 

Where do i even begin, I get so drained whenever I have to tell her story, it still feels so unreal but I am reminded of the reality whenever I see my niece without ears. 

My daughter loved her daughter with everything in her, she was such a loving and warm mother. She is a bubbly person who you'd just love her from her personality. 

Trouble began when she got a job far from home, she had to move so she took her daughter with her. Her daughter was a mommy's girl so we knew she was going to relocate and change schools with her mom. 

We are still not sure what really went down or who did what, but we have a suspect. So my sister was a focused and dedicated woman, when she got to her new job she was offered a promotio within a year because she was really hard working. 

She was someone who never had friends and if she wasn't at work she was at her rented room with her daughter. Things changed when she got the promotion. She had a new wild friend who was always taking her out for drinks. 

After a while my sister started complaining about constant headache. Before the ordeal her daughter would tell us that when the headache starts her mom roars like a lion, holding her head as if it is about to explode. 

She says that her eyes would even turn red then she would scream then pass out. When she woke up it would be like nothing ever happened. 

Apparently this would only happen at night and this would happen after her so called colleague would call her. One day her friend called her and my sister answered then started twitching. According to my niece she said seeing how weird her mom was acting she ran to take the phone. 

By the way my niece was 15 then, now 27. When she took the phone she saw that it was her mom's colleague so she put the phone her ear and heard the lady speaking weirdly like a robot. She was apparently saying things like "I own you and you will do as I tell you".

Then she hung up when she heard that it was now my sister's daughter on the phone and not my sister. Later that night my niece was woken up by her mom biting of her ear, when she couldn't remove the ear she got scissors and cut both ears out. 

My niece tried screaming but she had a cloth in her mouth and she was tied with a rope. Next thing she saw was her mom putting glue to shut her eyes. She is still traumatised by this experience.

She says since then she was no longer allowed to go to school and she was kept in the room for over 4 months. We also wouldn't suspect a thing as we would call just to talk to them and everything seemed normal.

Not knowing that my niece was forced to pretend to be okay. We were alerted by the landlord who one day just noticed that something was off with my sister. She went into the room while my sister was at work and found my niece tied in the room. 

That's when she called us, the police and an ambulance. My sister is admitted in a mental hospital, where she's will continue being kept since she's a danger to everyone and herself . According to her she says she doesn't remember anything. Whenever we go to visit her she is always asking about her daughter. 

We are even scared to tell her that the daughter wants nothing to do with her. We are traumatised even after so many years. We are not okay as a family and seeing my niece daily without ears is a constant reminder of the trauma and pain she suffered in the arms of her mother whom she adored whole heartedly.

We have never confronted the colleague but we haven't stopped praying for her karma.