Abaddon before becoming a demonic emperor used to roam the world robbing and slaughtering cultivators for resources, accordingly, incidents where he had to go through layers of array formations safeguarding a certain treasure weren't few.
Thus, the moment he got tossed inside of the spirit spring and swam back to the top to get a look at his surroundings, he immediately noticed the layers of array formations set around this treasure to protect it.
Nevertheless, Abaddon didn't care about that particular detail much, since people using array formations to protect their precious resources was expected, what instead drew his attention was the formation itself.
The layers of formations he was seeing are capable to prevent people above the godly realm from breaching them for days, and if the invaders didn't have anyone who was experienced in array formations, then it wouldn't be surprising if they remained there for months.
