Very good. The pacing was excellent. I loved your use of italics and normal font states. I don't really need anything to critique. The rest has covered it.
But I loved your display of Viktor Krum--if that's who the narrator is. He seems more than a side character now and you have really fleshed him out. Well done on that!
In the winter months, snowstorms and rainfall in the Patagonian Ice Fields can drastically affect the landscape. Worsened by heavy winds, such storms can reduce visibility and lead to glacial calving, ice collapses, and avalanches. During these conditions, travel is not advised. — The Documentarian