Brace yourself!

And behold; planet Earth! With its blue oceans, its green lands, its yellow deserts, its white clouds and polar caps. Picture it in your mind, my friend, as we pummel towards the ground in a most spectacular fashion! The continent America is now visible. As we fall down, North America is isolated. Canada and Mexico quickly drop from the map, the USA is the only nation visible now. We zoom in even more; The Southern states, the Gulf of Mexico, the state of Louisianna. Slowly but surely cities become more and more visible and we pick New Orleans as our desitination. Now our decline to Earth speeds up may times, as we isolate a building somewhere in the city. It's an old, broken building, probably abandoned, if not, probably squatted. In one of the rooms, a shapeless thing resides. The dog's skull inside the thing, which appears to be liquid, faces one of the walls. Ice flowers are scattered all over the ground and the walls and the ceiling, though the summer night is warm. A black permanent marker writes all sorts of words on the wall in a beautiful curved handwriting. But there is no hand, nor seems to be a writer. It just floats in empty space. What could possibly be the truth behind this mysterious and curious happening?