When it comes to shadow magic, it is nearly unknown in Equestria. So when 2 humans, one who studies the magic, get warped to Equestria, trouble ensues. New creatures appear within the country's borders that no pony has ever seen. It looks to be up to the newcomers to figure out what's going on… or to give up and say hi to Hades. Scratch that last bit, he'll probably say hi anyways.

A sidenote: There will be different characters/monsters from varying games making an appearance in this story. The one that I can confirm will be in there is Erebus from Persona 3 FES. Other than that, I'm uncertain as to which creatures will arrive. Also, Shadow Magic is a concept I've been working on for a very very long time. I've constantly gone through it to balance it out and even now I'm still messing with it. While I won't give any direct spoilers in here, more and more will be revealed about it as the story goes on.