Magic Forums

Hi. I am new here but I have a question about some spirit activity I have been having in my home. We have a resident ghost we call Peter. The other night while my son had some friends over one of the girls was grabbed by her ankles and was being pulled off the bed, her bf held onto her with all his might until the "assault" stopped. here is my question, I am pretty sure this was not Peter, Is it possible something else has entered my home and if so what could it be? Peter has always been a playful friendly sort and this is totally out of character. Any thoughts on this would be greatly appreciated.
Blessings