Richard Jones was a pretty ordinary guy until you notice his lack of a left arm, a real left arm that is. Richard (Riggs to his friends) was one of the few people who had been lucky enough to get a state of the art prosthetic arm which allows him to feel with his arm since he was a kid. He was having a good day until (as always in fanfiction) he was sucked into wormhole to another dimension where everyone (or should that be everypony?) is a brightly coloured horse thing.