I'm not sure if i read it on this site, but it was basically about this disease spreading and a small amount of people were on a train and they were just sitting there waiting for whenever the train would run out of coal. It was Suho and Chen based, and chen was dead during the entire fic. Suho was with his friend Luhan i think on the train and they stuck together till the end, and during the trip to find a cure they found a bottle of alcohol of some sort that when they drank it, it would allow suho to have lucid dreams about chen. It was really amazing for some reason i lost all of the fics i loved and i cant find them now can someone please tell me if they know what im talking about thanks!