Zheng Yongtai talked non-stop about the benefits of the Sima Grotto-Heaven, and Zhou Shu believed him.
But he had no intention of joining any grotto-heaven.
With the Legendary Armament Canon, be it the art of forging and cultivating Martial Dao techniques, he could do so without anyone's help.
Joining a grotto-heaven was completely useless to him.
But Zhou Shu had more or less obtained some information from Zheng Yongtai.
There were indeed more than two left out of the 36 grotto-heavens that Shi Changsheng had mentioned. Moreover, for some reason, these grotto-heavens had been in seclusion, and they only began to appear recently.
Most importantly, the Martial Dao of the Ten Nations Continent had been deliberately modified by these grotto-heavens. The path above the first rank of the Martial Dao had been deliberately cut off by the grotto-heavens!