Your Highness
The Northern Wolves Sect is a faction created for bandits. They never had any specific hideout as they were on a constant move, even their disciples. Although these people had always liked to rob other people for their own use, other cultivators or even the other sects never dared to make a move against them.
That was because they were simply too powerful to be easily handled. Even if the other sects managed to destroy them, they would have to pay a huge price—and that was to sacrifice their disciples, elders, and their other people. Moreover, they were not even certain about managing to kill every one of the Northern Wolves Sect's people. As said, they were always on the move.
Everyone would not settle in one place, and every one or every group of them would definitely be very hard to find. Moreover, most of them were cunning. Finding people as cunning as they are, it would be extremely tough.