When it came to the strangeness of the merchant encounter, Walker felt that it was some large potion of luck since they had managed to gain a lot from it. Plenty of the fire resistant items that were extras on top of extras had been snapped up by those merchants. They found high value in exotic items like that.
While they had not asked if their group was from the world, Walker had realized that these merchants believed they had traveled from different elemental planes the very same way that they also did to make their living.
It might not have been the case but maybe it was best that some people believed just that. It could be safer when dealing with some more volatile people or races if they were to meet some who did not like them.