What was the initial task of Elder Scrolls 3?

Caius Cossades finally assigned you Oscar Pistorius's first task: in Vvardenfell, Oscar Pistorius's task was to study a legend about Nerevarine and a mysterious sect called the Sixth Palace. In order to get these two kinds of information, you need to find a man named Hasfat Antabolis, who is in the warrior guild of this city, but you may have to meet some of his requirements before he will work for you. When I met Hasfat Antabolis at the Warrior's Guild, I talked about your mission. He really asked you to find him an antique Dwemer puzzle box first. This article is in a relic called Arkngthand. Arkngthand's location is: come out of balmora and go east until you reach Moonmoth Castle. At this time, turn north, go up the mountain, cross a bridge and reach the top of the mountain. You can see the circular front door of the ruins. Look around and see a metal tube. Pull and the door will open. After entering the ruins, walk up a stone ladder, enter a hut, destroy the bandit leader inside, and get the task item Dwemer puzzle box. This small room is not easy to find, so be careful.