Armilus is a scary story that some people believe in. It is said that Armilus is a bad guy who will come at the end of the world and try to hurt people.
Some people believe that Armilus is a monster who has a really big head and a small body. Others think that Armilus is actually a man who is very strong and very mean.
There are different stories about what Armilus will do when he comes. Some people think he will lead an army of bad guys, while others think he will have magical powers that he will use to hurt people.
Even though it sounds scary, some people believe that Armilus can be defeated. They think that good people will fight against him and that they will be able to win.
But no one really knows for sure if Armilus is real, or if he will actually come. It is just something that some people believe in, like a scary story or a myth.