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Sitting here, giving it a good think, Peter Brown had more of an understanding about the appearance of Thunder Star, everything was coordinated with the Trading System.
No matter who obtained the Trading System, they had to face a qualification recognition method, it certainly wouldn't allow the weak to control such a thing, so Thunder Star would emit Immortal Artifacts, immortal items, and Breath Soil, the main thing being to see if everyone could find and sell these immortal items, thereby ensuring they could secure the qualification, and the difficulty involved was certainly part of the assessment.
At that thought, Peter also realized that the Breath Soil was obviously a kind of mud for planting, it's just that his acquisition of it had been a bit easier than others.