The Three Shadows

When I woke up from my sleep, at about 3:00AM in the morning, I noticed three shadows of people standing in front of my mirror, they were standing, but not moving at all, (The best I can describe this is a person completely painted in black from head to toe) motionless in front of my mirror, (My mirror is on a dresser which is right next to my bed). These three shadows where about as tall as an eleven year-old child. They were just standing there, staring strait into the mirror, so I looked in the mirror to see what they were staring at, but in the mirror was my room, and only my room. The three shadows had no reflection in my mirror, so I blinked my eyes once, to see if I was hallucinating, but they were still there, so I waited about three seconds, and blinked my eyes again, and when I opened my eyes, they were gone, nothing but me and my room where there.

This whole experience only lasted about 15sec, but it felt like hours. I was not moving, and did not want to move. I was making it look like I was sleeping, but these shadows were not looking at me, they acted like I wasn't in the room. They paid absolutely no attention to me. By this point, I could hear my heart pounding in my ears, and I have never had an experience like this since then. Now, every time I look in my mirror, I always feel like something is looking back at me, even though I don't see them.

Afterwards, I was thinking of all the possible things that could have brought the spirits (The three black shadows) into my house. I am a collector of antiques, so about twice a month I will go out and purchase antiques, which I display in my room. Does anyone think a spirit could have came from one of the antiques?