Sk wanted to screech out again and ask the others to run without her, but when the blizzard calmed down, and the surrounding became visible, she no longer had the gut to say so.
Reason number one was the gigantic figure standing just at a distance from her. She didn't want to shout and become the first one to get stomped by that giant Great Wolf.
Reason number second was the condition of her comrades that was beyond the point of helping at that time. Ron and the other teammate were bleeding heavily. Judging from the severity of the wounds, they would need emergency surgery to stabilize their situations. If not, then there is no hope for them.
On the other hand, Simon had utterly lost his senses before the majestic figure, and the absolute power of the Great Wolf all he could see was despair, despair, and despair!