Arnold was more than happy to explain about Demons to everyone. Not only because he enjoyed spending time with them, but also because he knew they would encounter Demons one day for sure.
He wanted them to be knowledgeable about them. Hence, he spent his time telling stuff about Demons.
Meanwhile, Aegon knew a lot about Demons because of his upbringing, but he still listened carefully. It was always better to have more information about your enemies.
The Demon's Domain lay in the western edges of the Triana Continent, though it was debatable, since no one truly knew what lay beyond the Demon's Domain. For all they knew, the Triana Continent might be far bigger than they thought, and everyone was merely located on a small eastern end.
