The Hide-And-Seek Monster

This is my experience with a creature called The Hide-and-Seek Monster.
My friend had been telling me about this entity for a while now, and I didn’t believe him at first. I had never heard anything about it before so I thought he was making it up. 
So one day after school, he came to my house and we hop onto a Minecraft world. After gathering some crops, I went AFK. I sat there with my friend for about 30 minutes and nothing happened. Just as I was about to call him out on his bluff, he has a horrified expression and points towards the screen. Off in the distance something was watching us. 
As it was quite far away it was just a black silhouette. We both got scared and decided to hide back inside of the house. My friend was really scared. He told me that he had seen it the day before but quickly logged off of the world after he saw it. He thought I wouldn’t believe him. Now I did.
As we waited in the house, we looked out the window and saw it was approaching closer. My friend got really scared. He told me whatever you do, you don’t look directly at it. So every time we saw it, we quickly looked away. Finally it was right outside the window. We were both terrified. We blocked up the windows and doors with cobblestone so that it couldn’t get inside. 
Then a horrifying realization; we forgot to block off the mines. Quickly, we went to the door of the mine to block it off. Before we blocked it off, we saw it down in the mines looking up at us. At that point, I turned off the PC and the both of us vouched never to go back on. 
A few days later, my friend wasn’t answering my text messages any more so after school I went over to his house. I found police cars and ambulances outside, with his whole house surrounded in Crime Scene tape. His mother was sitting inside an ambulance crying really really hard. I expected the worst. I managed to take a peak through the window to see his room was completely covered in blood. On the wall, was a message:
“I found you!”
I only saw that much before a police officer noticed me and I had to run away. I am writing this recount in my room because I fear that I am going to die next. I don’t know how but this creature is real, and it is coming to find me. I don’t know how much longer I have left to live but I must spread the word. Please if you see this creature in your Minecraft world, delete it immediately or it will come for you like it is me right now. As I write this last sentence, I hear it outside my window, clawing at the glass. 
I’m going to a better place now. Goodbye.