Reflective Desperation

Years and years ago, young mr susan was traveling by mirror portal. Entering the room, he was unsure which path would lead him home, after correctly picking the first time, he feared he would not be able to do it again. And sure enough, he didn't. So for forty years mr susan has been stranded in his shiny world awaiting somebody as stupid as he was to take his lace as the mirror guardian/servant until now....