Arthur was down in his basement, brewing potions when he heard strange noises from the shop. "Thieves? In the middle of the city? Could they be the vampires?"
He did not believe ordinary thieves would have the means and the courage to break into a shop in the middle of the city, with many guards patrolling and other citizens around to ask for help. That could only mean someone had the contacts to do things unharmed or the power to overcome the oversight.
There was no way to be sure, and only after meeting with the invaders would Arthur know who they were, so he also used his unique spell to change his appearance, and he returned to one he used a long time ago as the Elven Ruler.
His long black hair turned blond, and his ears shifted to pointed ones. The general appearance of his face did not change much, but it was enough to fool almost everyone.
"Only someone who lives with me every day can notice the similarities!" he thought, going upstairs after doing the preparations.