This is a working pentagram (demon spawner) made in Minecraft with redstone.

A pentagram is basically a star inside a circle, and is said to be a symbol of the devil. To supposedly summon a demon you draw the symbol in blood, place a torch at each point of the star, and then read from the Necronomicon (this random death book thingy.)

This is my minecraft representation.

To use it, climb up the stairs onto the top of the endstone pillar. At each point of the star in the penatgram (which is made of red wool.), there is a hole, and after you place a redstone torch in each of the five points, a demon will spawn.

If you like, please subscribe and give a diamond.

P.S., I am later going to try make this into an adventure map, in which you start at the bottom of the end stone pillar, and at the pentagram at the top there is no wool, just a pentagram dug in the ground. You have to go on a quest to find red wool and redstone torches. There will be parkour, a mob arena, and many other things.