Can you answer these questions?

Was the vision the sister saw of her older sister walking off with the children real? Because she could see the husband saying goodbye to the family so she must be able to see the spirit world!

Who was behind the younger sister in the hallway at the end? The witch?

Who killed the sister in the shower? Was it the witch as the BF was killing the son?

Why did the witch kill 9 children? Was she framed for killing her own child? Her own child was killed by the church for land? So the witch was angry and to get revenge she killed the children of any family who moved into that home, yes?

The older sister when in the barn says there are 10 children just before you hear the bells/chains ring a 10th time! Who was the 10th child? Or was it an adult?