Jacob had been soaking himself in the Spring of Regeneration for three days. He could feel the spring water changing every day. He let his spiritual sense flow along the water, intending to penetrate the restricted area and determine where the water was flowing.
After three days of investigating, Jacob had a feeling that the water wasn't continuously flowing out but instead circulating within the area.
Under the moonlight, Jacob slowly stood up from the spring and followed the current to the forbidden ground. Soon after, he was overcome by a terrifying pressure, followed by an intense pain that spread all over his head.
"What a strong restriction. It looks like the restriction arcane arrays set up by the secluded sects are indeed powerful," Jacob exclaimed.
He quickly abandoned the idea of intruding into the forbidden ground. With his current capabilities, he was not powerful enough to resist the arcane array created by a few secluded sects working together.