Several years earlier, while Xu Qingtong was in Law City, he had posted a mission at the Four Directions Hall to find the whereabouts of tiger-patterned white jade lotuses. Someone had provided a lead, saying they had seen them at the source of the Sang River, west of Qushui City.
Xu Qingtong had wanted to go there for a look at the time, but because it was so far away, he had gone to Canggen Mountain first instead. As a result, he had obtained a large quantity of earth milk at Heavenly Lake on Canggen Mountain.
This time, with Du Siwen accompanying him and no urgent matters to attend to, Xu Qingtong planned to travel and explore along the way to Qushui City.
"Senior Sister, let's use the flying boat. You pilot it. I want to research a talisman!"
As he spoke, Xu Qingtong brought out the Ink Cloud Shuttle and cast a mudra. The Ink Cloud Shuttle instantly grew larger, and he jumped aboard.
Du Siwen entered the control cabin, took out a spirit stone, and activated the Ink Cloud Shuttle, flying northeast.
Xu Qingtong sat cross-legged to one side, took out a jade slip, and began studying it.
What he was researching this time was a warning talisman, usually used on cave abode restrictions. When someone disturbed a restriction, the warning talisman would send an alarm to the person who had applied it.
Since someone had followed them earlier, Xu Qingtong thought that if he had something that could detect a pursuer in advance, it could save him quite a bit of trouble.
After turning it over in his mind, he finally thought of the warning talismans used on cave abode restrictions. But warning talismans had many limitations, such as their warning range and triggering mechanism, none of