Steve, Nancy, Robin, you, and Eddie were all trapped in the upside down. Dustin found and gate and a way out so he made a rope of sheets and put it through making a way out.

But when the kids pull the mattress over there were stains Eddie froze up.

“Those stains are uhhh… I don’t know what those stains are” he glanced over at you and you both knew what those stains were.

Steve looked confused while robin looked at you and Eddie disgusted while Nancy just didn’t care wanting out of the upside down.