Dream About Black Baby Horn

My favourite senior sister apu was married and took her baby to bed. I went to the bathroom. The apartment looked like the old coaching centre where I used to study. However, the light was dim and as soon as I opened the bathroom door, something black came out from inside and landed at my feet. It looked like a newborn baby, very black and had a black horn on its head. It was moving. I ran in great fear, when apu was coming out of the room, I bumped into her very hard. The bumping scene repeated once more.