In the evening, Jiang Hao was practicing his saber techniques in the courtyard. He was just practicing some moves and didn't infuse the saber with any power.
The Seven Forms of Heavenly Blade also talked about some saber techniques which weren't really for fighting. Instead, the moves helped familiarize the person with the saber and were useful while cultivating.
After a while, he sat down on the ground and started refining his saber.
The spirit beast hadn't returned yet. Jiang Hao had asked it to look around and find some information on what was going on.
The girl in the Spirit Herb Garden and the sick man were all the confirmation Jiang Hao needed to know that the next target for the culprit was the Cliff of Broken Hearts.
The matter had nothing to do with Jiang Hao, but he knew it would affect the Spirit Herb Garden too. It would become impossible for people to work there if he ignored the problem.