Brother Sargent Valerian of the Ultramarines is ripped from the battlefield. Summoned to a foreign realm, with his summoners dead set on using him to conquer the land know as Equestria. This, however, is not all. His summoners are not human. While he may not know where he is, Valerian is certain of one thing. By the Emperor, these Xenos will be purged.

FOR THE EMPEROR!!!

*AUTHOR'S NOTE*
Man idk where the hell I came up with this idea, but I really wanted to make something showcasing a strong enemy against Equestria. One that the magic of friendship simply won't cut it against. Hopefully my imagination gives you an interesting story.

Also I cannot find the source of the cover image. I found it on Wallpaper Flare and although I searched I could not find the original creator, thus, Wallpaper Flare is linked as the source.