Found

Being able to continually face off against Heavenly Venerates without worry also helped them familiarize themselves with the specific patterns of facing Venerate level Dao principles, the subtle nuances, and world-shaking might of the abilities employed by the peak powerhouses of the cultivation world. 

The insights they gained from these repeated life-and-death battles were invaluable for their cultivation, each clash a crucible in which their skills were tested and their resolve tempered.

Still, the trio hadn't forgotten their true purpose here, the reason they had come to this city of marvels and wonders. 

The Book Of Stories, that legendary tome said to contain the secrets of the universe itself, remained elusive, always just out of reach.