"Are you lost in the frost?" A lone giant speaks, a cloud of chill air escaping his blue-lipped mouth.
In the distance, through a thick fog, you can see more of them coming out a cave lit by blue light. Almost like a portal to the netherworld is it’s eerie glow. You can feel fear growing in your belly. These aren’t normal giants. Their skin is blue, their hair and eyes silver. Stone jewelry hangs about their bodies making them look like brickwork monsters.
"Tiny man," The leader speaks, icicles breaking and falling from his jowls. "What brings you so far north?"
When was the last time a character caught a cold or flu? Real people get them every now and again even with solid heating and dry interiors. Your characters are out in the cold and wet, and even inside is not always dry and warm. Imagine having to stop your dungeon crawl, sitting in a tight defensive position, while you all are feverish.