Duke tried all the Secondary Magic Spells he had mastered in the Oracle Plane many times, recording a large amount of data.

During this process, a message came from the Skill Tree.

[Deep Blue Tide Meditation Technique level increased, Spirit +0.1]

[Deep Blue Tide Meditation Technique: LV13 (1/7000)]

Since he had already drunk a White Mist Forest Potion before doing the experiments, the automatic meditation feature took effect, and the proficiency of the Meditation Technique continuously increased.

For the past few months, Duke had maintained a state of automatic meditation, and the Meditation Technique leveled up several times.

This time it finally reached level 13, and the flower representing the Meditation Technique on the Skill Tree finally became a fruit, although not yet fully mature.

With the feature of automatic meditation, the proficiency of the Meditation Technique increased much faster, and it's estimated that it won't take long to reach the maximum level.

Duke planned to grind these Secondary Magic Spells to the max level during this period, to acquire enough free attribute points.

Anyway, Lucas had told him to try not to leave Black Sail during this period, as there might be things requiring his cooperation later.

Overall, it wasn't much trouble; most likely, it's to better understand the events that occurred, considering an entire city and so many Wizards were lost in one go.

For Black Sail, it's a significant loss, certainly needing a thorough investigation.

...

Early the next morning, Harrison from the Giant Rock Commerce Association came to visit Duke, looking a bit haggard.

"Not doing well lately?" Duke said as he poured Harrison a cup of tea.

Harrison smiled bitterly: "Having compensated Black Sail with such a huge amount of money doesn't make things better, but at least we got through the toughest times, and those lands are still retained."

Black Sail had found a legitimate reason to take money from these Commerce Associations, and they could only swallow their grievances.

No matter what, they couldn't compare with Black Sail; to be precise, many of these Commerce Associations survive by relying on Black Sail.

Most Commerce Associations are like this, surviving like vines clinging to major Wizard Organizations.

On the surface, the influence of Commerce Associations seems significant, but however large, without the strength to conquer a plane, they still need to rely on the Wizard Organizations.

After Wizard Organizations conquer a plane, these Commerce Associations can only bow to the Wizard Organizations if they want a share, and Wizard Organizations also need these Commerce Associations to convert resources into benefits.

Overall, they complement each other, but the Wizard Organizations inevitably hold the dominant position.

Black Sail's actions this time weren't excessive per se, only taking money without reclaiming lands, allowing these Commerce Associations to earn back later.

"So, what brings you here?" Duke didn't believe Harrison was just there for nostalgia.

Harrison smiled, glanced around, and whispered: "If you have any special resources from the Other Plane, you can secretly sell them to our Giant Rock Commerce Association. Rest assured, we'll keep it confidential; no one will know it came from you."

Duke smiled slightly upon hearing this; such words are just talk, believing them would be foolish.

There are no walls entirely impermeable, and he believed that if he sold anything from the Oracle Plane to Harrison, everyone else would certainly know immediately.

Even if Giant Rock Commerce Association strictly kept secrets, such information would leak out.

Because members of these Commerce Associations are a mixed bag, with people from various forces, many have multiple identities, making it impossible to truly keep secrets.

Duke had over eighty thousand Magic Crystal Stones, all earned from selling Magic Potions in the Oracle Plane.

The same Magic Potions wouldn't fetch such high prices in the Wizard Plane, but in the Oracle Plane, they're premium rare potions, with prices multiplying but still in high demand.

Previously, Duke was troubled by production capacity, with his individual ability unable to match the huge demand from Azure Vault City.

The Magic Potions of others in Azure Vault City paled in comparison to Duke's; anyone who had seen or used Duke's potions would never want others' concoctions.

Duke's Magic Potions were expensive but had no flaws and no alternatives, unique.

He didn't sell a large quantity in Azure Vault City, mainly secondary potions.

Primarily because he considered his future needs, he didn't sell extensively.

Now, with easier travel between the Wizard Plane and Oracle Plane, he could sell more potions in the future.

Duke thought for a moment and said: "I don't really have valuable things to sell."

He's not planning to sell those eighty thousand Magic Crystal Stones, at least not during this period.

Duke estimated quite a few people were secretly monitoring him; selling Magic Crystal Stones would surely catch the attention of others.

Magic Crystal Stones, as a new type of Energy Crystal Stone, implied Duke might have visited a resource-rich plane, inviting trouble continuously.

As for Light God Court, it's even less likely to be sold; it's his core secret.

Such treasures, no matter the price others offer, Duke won't sell, nor will he let others know he possesses such an item.

Duke was well aware of what a treasure carrying a small world signifies.

Harrison apparently didn't believe him, saying: "No worries, you can prioritize selling to us if you have anything in the future. Remember to contact me if you have good stuff!"

Duke smiled without responding; after chatting for a while, Harrison left.

Harrison's visit this time was mainly to probe; Giant Rock Commerce Association was short on cash, hoping Duke had good stuff for them to earn. Unfortunately, Duke didn't plan to cooperate.

Duke later chatted with Simon, Merrick, and others, learning about their recent situations.

Simon was still a First-class Wizard Apprentice, with his Spiritual Power still some distance from fifty points, now silently cultivating and gathering resources for future advancement.

As for Merrick, he hadn't yet reached the Liquefaction Stage, and his Spiritual Power wasn't even as high as Duke's.

Duke also realized that as things progressed, the power of the Skill Tree became more pronounced.

Initially, it wasn't obvious, but later on, improving strength wasn't so easy.

For most Wizards, it's like this; their Spiritual Power increases, making further improvements more difficult.

With free attribute points, Duke could ignore these difficulties, steadily advancing.

His progress speed didn't seem particularly fast; he wouldn't suddenly soar, but could maintain stable steps for continuous progress.

Just this brought him a huge advantage, becoming more apparent in later stages.

Most have a talent limit; upon reaching it, improvements become difficult.

But in front of the Skill Tree, there's no limit.

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