A Family Curse?

I live in Northern Ireland, just outside Carrickfergus in a renovated mill that's been in our family since my great grandfather's time. It's safe to say that I've had an easy life. He was very wealthy and this was passed on and added to, as well as the house which was changed from the mill thanks to my grandfather.

Lots of unexplained things have happened in that place, and from my great grandfather's journals that he kept I think it's due to him. After he went away to England he came back to the mill and things started occurring and I quote from his journal, things like 'faces in the darkness and noises in the night'. He unfortunately towards the end of his life developed dementia and his last entry read simply, "I'm so sorry."

My grandfather inherited the place and things continued for him. He would often tell me of things he saw and heard when I was a kid, and they used to scare the hell out of me but as I got older I figured out that they were just stories to scare me, cause he had a kind of wicked humour. He's now in a care home and as my mother never wanted the house, I decided I would take it as it's worth a lot. I have a wife and a daughter and it's a part of my family's heritage. I'm rather sentimental like that.

As soon as we spent the night weird things started occurring. They started off small, a few bangs, things went missing, etc. I put it down to it being an old house and my own carelessness.

But then the real hauntings began. Plates were smashed, doors and cupboards open by themselves. One night as I was walking to the study I saw a shadow against the wall. Thinking it was mine I thought nothing of it until I realised there was no light behind me and at that moment it moved across the wall and out of sight. That truly started to frighten me. Then as I came home one day I heard the sound of quick footsteps, a giggle and the study door slam shut. We hear voices whisper in our ears when on the computer or watching television saying things like, "I'm here" and "...not yet."

Worst is this is affecting my family. My daughter made 2 new imaginary friends who tell her to go into the knife drawer and tell her to draw strange things. Usually it's simple things like the moon etc but one she drew a pair or red eyes in darkness so after that I took away her books and colouring pencils. My wife hears noises, voices, sees things outside our windows and she is becoming very distraught.

These things happen regularly, maybe once every two nights and at its worse ever night. Many of you may read this and just dismiss it but for me this is a real thing, I live through this and I'm at my wits end. I don't want to sell the house but it's getting close to that point. Can anyone please tell me if there is anything I can do to stop this curse? And these events

Thanks for listening to this rant.