After the iron door opened, Duan Gujin entered the Artifact Refining Material Storage under the supervisor's guidance.

Although the materials inside the Artifact Refining Material Storage were extremely precious, Zhan Taiping had already warned the supervisor and others that Duan Gujin was an expert he had invited. Whatever he wanted, they couldn't stop him.

Before entering, Duan Gujin had already had Ling'er transmitted from the bracelet.

He instructed Ling'er to extend her Divine Sense to detect where the Xuanwu aura was present.

Soon, Ling'er determined the approximate direction.

Duan Gujin followed Ling'er's instructions to the place where the Xuanwu aura was found.

He widened his eyes and closely examined the large pile of materials before him.

He saw that the pile of materials resembled raw stone, unprocessed, and was exceptionally damp.

"Where did you find these materials?"

Duan Gujin immediately asked the supervisor.

The supervisor carefully inspected the Artifact Refining Materials, realizing they were unprocessed ore.

He thought for a moment and said, "These ores were just found by our people from outside and haven't been processed yet! If you want them, we have plenty more similar ores."

"I just want this pile, I'll pick some out!"

Duan Gujin pretended to choose for a while, quickly finding something the size of a fist, resembling a turtle shell, under Ling'er's guidance.

He used his Divine Sense to look inside the turtle shell. After a while, he gasped, realizing his Divine Sense discovered a Divine Pattern Heavenly Array with numerous Defensive Magic Arrays inside the turtle shell.

"It seems likely this turtle shell was left by some Xuanwu Divine Beast in the past!"

Such turtle shells, with a large number of Divine Pattern Heavenly Arrays, are extremely rare even in the Divine World, let alone in the Yuanzhen Continent.

The reason why a Xuanwu Divine Beast's turtle shell is so hard is mainly because as it ages, the surface naturally forms Divine Pattern Heavenly Arrays.

Every year a Xuanwu Divine Turtle ages, an additional layer of Divine Pattern Heavenly Array forms on its shell.

Over time, a Xuanwu Divine Turtle with millennia of age will have a shell covered with densely packed Divine Pattern Heavenly Arrays, and its turtle shell's defensive power will become quite remarkable.

To determine if a turtle shell is sturdy, first judge which kind of Xuanwu Divine Beast the shell belongs to.

Generally, determining the type of Xuanwu Divine Beast from the shape and patterns of a turtle shell is very challenging.

This is because, as any Xuanwu Divine Beast cultivates to higher levels, its turtle shell becomes jet-black like ink, and its texture smooth as silk.

Duan Gujin carefully examined the number of Divine Pattern Heavenly Arrays on the turtle shell and quickly judged that its owner must be at least three thousand years old.

"Great!"

Overjoyed, he quickly stored the turtle shell away and then inquired with the supervisor about where those ores came from.

"I found these ores have very high purity and excellent quality. I want to get more of these types of ores. Supervisor, can you investigate where these ores came from and make sure to confirm it! Here is ten thousand Yuanzhen gold coins, a little something for the supervisor's trouble!"

Duan Gujin immediately fished out ten thousand Yuanzhen gold coins from his storage ring and forced them upon the supervisor.

He said, "Supervisor, I urgently need these high-purity, high-quality ores, please go and find out exactly where this pile of ores came from!"

"Sir, it's a simple task you ask of me, I cannot accept this money!"

The supervisor hurriedly declined.

Duan Gujin chuckled dryly and said, "I have a special status, and this money is of little use to me, take it if you can use it! Has Zhan Pingta told you I'm a Martial Saint from another continent?"

"No!"

The supervisor's heart jolted with shock, as he'd heard tales of Yuanzhen Continent's links to other continents, occasionally having Martial Artists from other places arrive on Yuanzhen Continent.

But such occurrences were mostly considered legend and without personal experience, he couldn't determine their veracity.

Now, hearing Duan Gujin claim to be from another continent, he naturally felt a sudden shock.

"Oh, Supervisor, please keep these Yuanzhen gold coins. I won't be able to take them back to other continents! Even if you gave me many more Yuanzhen gold coins, they would be of no use!" Duan Gujin stated sincerely, "Please tell me the location of those ores, I really need these high-purity, high-quality ores!"

"Alright!"

After several refusals, the supervisor finally accepted the ten thousand Yuanzhen gold coins from Duan Gujin.

In his mind, finding the specific extraction location of that pile of ores was not difficult for him.

Plus, Duan Gujin merely asked him to locate a pile of ores, not the valuable Artifact Refining Materials from this place.

"What are these ores?"

The supervisor asked curiously.

"These ores are called Mica Sand Ore, a naturally water-attributed ore! I intend to create a water-attributed Dark Weapon for my woman using this Mica Sand. You know, women won't be appeased unless you placate them! Last time, I accidentally broke her treasure sword, and she's been sulking ever since. I want to forge a treasure sword to make her happy!" Duan Gujin explained.

"Oh, I see! Alright, I will immediately send someone to investigate!"