Twilight searching through her books found a stone that could bring back the dead. She couldn't offer up this opportunity to see if this was real or not. The only problem was it was held in a cave covered in traps and challenges. Knowing she wasn't the most athletic pony she needed to find some pony she could completely trust. She ends up giving the responsibility to rainbow dash but rainbow isn't alone on this mission an unexpected guest will help her through what is to come and even more.