This is book 1 in the Forgotten Trilogy

Iron Smith has been living all by himself alone in a forgotten kingdom. The ponies in this town are confused as to why he doesn't want anyone to talk to him and why this strange Purple Alicorn has managed to convince him to let her in and talk to her about his past, what secrets is this pony hiding from the rest of the world? Iron Smith knows one thing, Some secrets he has kept are better kept unknown.

Special Thanks to ShinyGirantinaZ for being my proofreader and editor without you this story would not be nearly as great