When an adventurer from Terraria gets sent to Equestria via a broken magic relic, he unknowingly brings the deadly Corruption that threatens to destroy all that stands in its way, and now the traveler will have to save this world, as well as find a way to cure his own, or suffer the dark consequences. (A rewrite of my other story, Equestria's Corruption. Same basic story line, no OC this time and better writing, I hope.)