Rustle, rustle, rustle...
Watched as Xuansi Gu respectfully retreated into the depths of the mist, disappearing completely from sight.
It was only then that Li Boyang turned around to look at the puzzled face of Li Jingshu.
"Big Girl, I just remembered something, so today you can head back on your own!"
Li Jingshu blinked but didn't ask anything further, instead nodding sensibly.
"Well... is there anything you want me to pass on to Brother Yu and sister-in-law?"
Hearing Li Jingshu's question, Li Boyang paused for a moment in thought.
Then the shadow beneath his feet suddenly rose up.
A scroll crafted from silk, the "Mountain and River Trend Chart," was handed over.
Unlike the drafts in the study, this scroll not only accurately and comprehensively depicted the topography of the Hundred Lands Mountain Range.
At some critical points, Li Boyang also drew corresponding models of hydraulic structures.
From large reservoirs and river dams to small water channels and aqueducts...
