"They left me here. They fucking left me in here!" Eddie gasped, the blood in his mouth choking him as he tried to steady his breathing. "I know, I know," Billy mumbled, trying to calm the scared, dying man. "I got left here too." Whoops, I started writing Mungrove. I wanted these two to interact so badly, so I decided to write a fic where they found each other in the Upside Down. This was meant to be a one-shot, but I couldn't stop writing, so multi-chaptered Mungrove for you all. I know it's not Steddie, but I hope you all enjoy anyway.