He swung the fire sword around for a while before turning it into a bow. Then he drew the bow and fired it into the sky.
An arrow of fire had formed when he drew the bow. That arrow of fire flew into the sky when he fired the bow. The fire arrow flew high into the sky until it reached the limit of the sky.
When the fire arrow struck the limit of the sky, it exploded into a ball of fire. This ball of fire was so big and so bright that it became a second sun in the sky. So, for a brief moment, two suns appeared in the sky.
This second sun was bigger and brighter than the original sun. Unfortunately, it was rather short-lived.
The second sun went out a few seconds later. But even though its life was short, its absence was felt because the world became darker without it.
As for the first sun, it was panicking. It was panicking because it didn't know what Loki was going to do with it.
