Seeing Zhang Su, Zhang Tie did not go inside. Instead, he smiled and directly handed a spatial ring to Zhang Su. "This spatial ring already contains enough Demon Fire Pills and Ten Thousand Gods Elixir. There are also several secret manuals prepared for you, and I put some books inside as well, so you can pass the time when you're bored. You'll be in the Time Tower for twenty years. With these things to assist you, focus on cultivating—advancing to Knight is just around the corner!"
Zhang Su glanced at Zhang Tie, then nodded forcefully and accepted the spatial ring.
At a time like this, any words of thanks between the two of them would have been superfluous.
"I will definitely advance to Knight!" Zhang Su said in a deep voice.
"Using a spatial ring is simple. Just send your spiritual energy into it and slowly explore it yourself. Once you advance to Knight, this spatial ring will be yours to use!" After saying this, Zhang Tie patted Zhang Su on the shoulder. "Get a good rest tonight. If you need to contact your family, do it tonight. Once you enter the Time Tower tomorrow, even the remote-sensing communication ring won't work!"
"Alright!"
"Oh, right..." Zhang Tie directly transmitted his voice into Zhang Su's ears, "Using Ten Thousand Gods Elixir together with Abacus Mental Calculation can yield twice the result with half the effort. Its effect in increasing spiritual energy is incredibly powerful. The Jiang Family still doesn't know about this, and it is also a secret of the Iron Dragon Sect. You can try it in the Time Tower!"
Zhang Su nodded to show that he understood.
Zhang Tie said nothing more. He left Zhang Su's room and continued on to the next one.
Sure enough, Zhang Su