Dun Dao City.
The streets were nearly deserted at night, with only two carriages parked outside the storefront of the Purple Vine Chamber of Commerce.
Zi Di and her entourage didn't head straight for the auction but first entered the local branch store.
A magical girl held a slab, which was engraved with a large segment of text. The text was dense and disorderly, clearly requiring a special cipher to deconstruct and reveal the true information hidden within.
Zi Di checked it three times, and after confirming that there were no errors, she solemnly placed the slab into the recess.
This was a pillar-shaped magic device, designed specifically for communication.
The pillar was only half the height of a person, with a round top that featured a central recess. The rectangular slab fit into the groove, seamlessly matching the patterns.
"Once this step is taken, there can be no turning back," Zi Di thought to herself.
Her hesitation lasted only a moment.