Closed-Door Cultivation for a Year, His Poison Arts Reach Great Heights; Feng Cang Returns with the Treasure

Heaven Dou City, Dugu Bo's residence.

Dugu Bo returned to his home, radiating a murderous aura. Although he and Yu Yuanzhen had fought to a draw, he still felt somewhat dissatisfied.

"Grandpa, are you all right?" Dugu Yan asked, looking at her grandfather with concern.

"I'm fine. That old bastard couldn't do anything to me." Dugu Bo waved a hand, but a thoughtful look flickered across his eyes. "Still, this battle showed me where I fall short. My Martial Soul has evolved, but I still haven't mastered the use of poison."

Xue Yao nodded pensively, then suddenly spoke.

"Grandpa Dugu, I have some notes on poison-based Soul Skills and the properties of poison. I wonder if they might be of some help to you?"

"Oh?" Dugu Bo's eyes lit up. "You've studied poison-based Soul Skills too?"

"I know a little." Xue Yao spoke modestly, then took a thick manual from his storage pouch. "These are some notes I've compiled recently. They cover the classification and combination of poisons, as well as some ideas for creating Self-Created Soul Skills."

Dugu Bo took the manual and casually flipped through a few pages. His expression changed at once.

"This... this is..."

The manual not only analyzed in detail the properties of various poisons and how they interacted, but also put forward many theories he had never heard before, such as the cumulative effects of poison, targeted toxin attacks, and how to develop corresponding Self-Created Soul Skills based on different poisons.

What shocked him most was that the manual also recorded several methods of cultivating poison arts that he had never seen before. These methods could not only increase the potency of poison, but also strengthen the body's resistance to toxins.

"Kid Yao, did you research all of this yourself?" Dugu Bo asked in