The tunnel was not as colorful as he remembered, or maybe it was just Arthur's eyes that had changed. The Isotox was resting quietly in his subspace while his mind was an arena of chaos.
His father gave him the way to return home, but he also asked him to wait. There were things that Arthur needed to do to ensure that this world did not fall to the calamities.
Arthur refused, but it wasn't because he wanted the people to suffer. If there were things that he could do, he would have done them. However, he knows that there will be no end if he goes down this path until it consumes him.
His feelings were already eroded, making his judgment clouded. The happy reunion with his father gave him nothing but misery. Arthur's goal was accomplished, for he had met his father, but what was the outcome.