'Na, let it be...'
Both of them exited the dungeon at the earliest before it could disappear completely.
But that didn't mean that the dungeon would vanish forever.
Since Jay had already got to ownership of the dungeon, it would just end up in his own grasps.
So it is disappearing only for a temporary period of time which is not much.
Right now since both of them were out of the dungeon, they had to focus on whatever they had in their hand.
Res was totally surprised by many things that happened in the dungeon and wanted an explanation about that while Jay wanted to know about the staff which he put in his inventory just before exiting along with the hammer.
Although it wasn't known that what significant strength the staff would provide, it was for sure that this was the thing that he had been looking for.
Also, he got the tunes as a bonus which would most definitely boost his strength by several times.