It was the temperature drop that clued him in that something was wrong, and the sight of the brown dust made him grab the drone and yank it backwards to keep it from moving forward. Its repulsors didn't generate a lot of heat, but it might be enough to cause a massive growth, and outrunning a room sized growth of brown mold increasing exponentially was not a fun idea.<br/><br/>Sadly, he didn't have any way of creating cold damage, so this was another blocked passage, meaning that with the slime mounds and now the brown mold, there was one way in and out that was safe for him. Still, he backed into the refuse/salvage room, and headed south-east. One more blocked passage, and he was going to have to report back with a map to ensure any follow up teams didn't blunder into anything without preparing for it.