This is a video of an orange powderlike substance, known as ammonium dichromate, that when lit burns in a cool volcano-looking fashion.
Seems like a pretty neat and harmless idea, right? Like a good experiment to show the fourth-period science class.
As this video shows, sometimes burning ammonium dichromate can usher in a reign of darkness that will last 1,000 years*.
*A minor side effect you'll want to avoid.
It starts out so innocently, just happily smoldering away like a good little volcano.
What a cute volcano!
Then things get a little worrisome when what looks like a black plague begins to spew out of the center.
Excuse me, WTF are you doing, little volcano?
AND THEN THIS FUCKING HAPPENS.
OH MY GOD, WHAT THE FUCK IS THAT? WHO RELEASED THE GODDAMN KRAKEN?!
IT JUST KEEPS COMING. WE CANNOT STOP IT. THE EARTH IS DOOMED.
It's over. Cthulhu is here for our souls. All hope is dead.