Where did Flash Sentry's Demon enemy appear?
On the day at Equestria world a unicorn gentacolt was an artist and a good drawer and he creates comics and mangas,and he's half Gothic.
Every time he draws characters like creepy monsters, some of the ponies like them alot, he appreciates there support.
Later at night he went out for a break farther from the crystal empire what he sees a red light glowing a bit, he went for it and it was a buried underground he diged a little it was a black gem glowing red on the inside, what he thinks that it's a piece that came from the notorious King Sombra,but wait it's not a just a gem itsihis horn! and so