Prompt: Mud
The grasping, wet muck sucked at the group's feet, impeding their travel immensely. It clung to everything and washing it off was an impossibility with the lack of warm water in which to bathe – the cold streams more likely to kill them all off more than their multitude of enemies were. Whenever they encountered frozen mud was somehow even worse, with its ability to twist or break their ankles. An injury like that could prove devastating with the group's lack of healing supplies or even the most basic of first aid.
Not for the first time, Macbeth wondered just why it was that Erza had left the world of warmth, clean beds, and decent medical care to tag along with their pathetic little group of criminals on the run – much less why she continued to stay.