The fear of the unknown was something anyone would face in that situation. Arthur did not know where the portal would lead him, but there was no other way to leave the cave.
"It is what it is."
He thought of trying to contact George to see if he knew something about the portal, but Arthur was avoiding contact with him, as he was still uncertain if George was trustworthy or not.
Arthur tossed all these thoughts to the back of his mind and passed through the portal. His vision blurred, and for a moment, everything around him was pure darkness.
Then, sunlight hit his eyes, making him close them for a second.
"Snow?"
The ground beneath his feet had a thick layer of snow, and all the surrounding trees had snow as well! It was not uncommon to have snow on the central continent. In fact, the entire central continent was snowy during winter!