Masked

One day, I played on MineCraft singleplayer. It was normal, I gathered recourses, I built a house, but something was off. I saw a village but it was on fire, I was very confused, I didn't think to much of it, until I went in the chest and saw a sticky piston. I grabbed it and put it on the ground. And it kept turning on and off, and water spilled randomly on top of me, I drowned and couldn't escape. I respawned in a cave,I looked behind my self, and I saw a guy dressed the void, wearing a mask. It disappeared, I died randomly, And all I could see is the mask, the game crashed, and I never played MinceCraft, ever again.