"Nothing special, just in case." Although the Spiritual Energy here was abundant, it certainly wouldn't be enough if Si Nansheng needed to absorb it to comprehend the Sword Intent.
If they didn't use these Spirit Stones as a precaution to draw in a Spiritual Energy vortex, it might attract a lot of attention to this place and to Si Nansheng, which would spell trouble.
Li Tianhen knew Zhang Ju's true identity and treated him with due respect. Sitting across from Zhang Ju, he poured him a cup of tea. Zhang Ju looked at Li Tianhen, then back at Si Nansheng.
Chapter 229