C461 Protect North Water
Could it be that after Gong Anloong painstakingly used up all of his manpower and resources to build the 5th Heavenly Tomb, and laid down the Spell Array, he left with a pat on his butt? You didn't put anything in here?
Although Gong Anloong was a cultivator, he would also have the same thought. Furthermore, he was a Feng Shui lord, he would bury his bones in a natural grave