In a barren biome consisting solely of ice and snow, Monica was on a continuous journey through the bitter cold as she pulled her hooded cloak further over her head.
Perhaps the hardest part of surviving in an environment like this was the temperature.
When it's cold, you cannot stop.
It is so easy to succumb quickly to hypothermia and frostbite if your body is not moving to keep itself heated up adequately, or if you have no food in your system.
Loss of limbs wouldn't normally be a problem for someone like Monica, but she wasn't really that keen to experience it's symptoms either.
The only reason she hadn't taken to the air was to keep her body moving and conserve energy without having to draw in magic from her surroundings to keep her temperature up.