The safe path through the brown mold narrowed in front of their very eyes, as the fungal growth visibily spread towards them, attracted by their body heat. The chill began to dip beyond uncomfortable into unsafe, forcing them to make a run for the exit at the far end of the cavern lest they be frostbitten.<br/><br/><em>(Assuming they run for the exit, make a Reflex save to avoid taking cold damage. Or if they hang around to search the body, they take the damage without save.)</em>