It had, however, been followed by that cough. At first it was thought to be just a winter chill... one that took months to pass. It had been with him for three years now and showed no signs of going away. He also seemed to grow more lethargic, more tired. Not his usual laziness either – he seemed to have barely the energy to leave his room most days. It really was becoming worrying. Twilight, being Twilight, had taken it upon herself to try to research some way of getting help to him when it became obvious that no doctors in Equestria could really identify what was wrong with him, only to run into a brick wall.