In the backyard of the Blue Palace, Cang Yun followed Cang Yuanfeng and passed through the quiet and deep courtyard before finally stopping in front of a hidden stone door. Cang Yuanfeng extended out his palm, and surging source energy spread out.

Rumble …

In the next moment, the heavy stone door slowly opened. Cang Yun turned his head to the side and looked at the stone door that had bright rays of light coming out. He pursed his lips and a look of anticipation appeared in his eyes.

This was the private treasury of Cang Yuanfeng, and Cang Yun had come here once or twice before. Thus, he knew that his father valued this treasury very much, and only extremely precious things would be placed inside.

"Let's go." Cang Yuan Feng waved his hand and immediately took the lead to walk in, with Cang Yun following closely behind.

Inside the stone door was a secret room. Over ten night pearls the size of goose eggs hung from the ceiling of the room. They emitted a gentle light, brightening up the entire room.

On both sides of the chamber, there were stone racks. On one of the shelves, there were numerous porcelain bottles. These porcelain bottles all had a rich luster to them. Clearly, they were some sort of restrictive spell added to them to protect the contents of the porcelain bottles.

Cang Yun knew that what was contained within these porcelain bottles were the spirit beast blood essences that Cang Yuanfeng had collected over the past two years.

"How is it? Are you satisfied with the quantity?" Cang Yuanfeng asked with a smile.

Cang Yun looked around with a fiery gaze. He nodded and said, "I am very satisfied. Thank you, old man."

He roughly estimated that there were about sixty to seventy porcelain bottles, and each bottle contained the blood essence of a spirit beast. In other words, Cang Yuan Peak had prepared sixty to seventy portions of spirit beast blood essence.

In addition, these porcelain bottles were all labeled with the types of spirit beasts killed, as well as the cultivation level when they were alive, allowing people to roughly guess the quality of the spirit beast blood essence within the porcelain bottles. In this aspect, Cang Yun was quite satisfied with them, and could even be said to have exceeded his expectations.

"There's no need to be courteous to your father." Seeing the moved look in Cang Yun's eyes, Cang Yuanfeng patted his shoulder, and then urged him with a hint of excitement: "Hurry up and start. Your father is somewhat impatient to see the power of your blood source."

Even though he himself had never truly felt the power of the blood source that was obtained from the inheritance, he was able to faintly sense the astonishing vibrations that were lurking within the blood source. Hence, he believed that this mysterious blood source would definitely not disappoint him.

The next moment, Cang Yun took off his shirt and walked into the stone room with his upper body bare. He sat down cross-legged and took a posture of cultivation.

Twenty portions of spirit beast blood essence just happened to fill up the pool. The dark red liquid didn't even reach Cang Yun's chest as an extremely rich smell of blood suddenly filled the room.

After doing all of this, Cang Yuanfeng temporarily stopped moving. With a somewhat worried and expectant gaze, he instantly stared at the movements in the pool.

Weng! *

At this moment, Cang Yun's hands, which were buried under the scarlet blood, moved slightly and formed a strange seal. The originally calm liquid surface seemed to be disturbed as it started to violently churn.

Cang Yun's face trembled. At this moment, the tremendous energy contained within the spirit beast blood essence was entering his body, and a strong stabbing sensation spread throughout his body, as if there were countless tiny needles stabbing into his body, entering his skin, then entering his meridians, and finally spreading to his dantian. That kind of feeling was akin to a cruel torture, even with Cang Yun's mental fortitude, it was hard to bear.

This was the pain that every genius needed to experience, because the higher the grade of the blood source, the higher the quality of the spirit beast blood essence. This was the pain that every genius needed to experience, because the higher the grade of the blood origin, the higher the quality of the spirit beast blood essence.

Cang Yun understood this point very well. Therefore, even though the pain was unbearable, he still gritted his teeth and persevered. Without the slightest bit of distraction, he cultivated methodically.

The thumb sized blood source had obviously grown in size, and the seven-colored halo surrounding it had become even brighter, emitting a mysterious and noble aura.

At this time, seeing that the spirit beast blood essence in the pool had been reduced by more than half, Cang Yuanfeng once again waved his hand and poured another twenty portions of spirit beast blood essence into the pool.

In a split-second, the reek of blood that had originally been calm within the stone room suddenly became stronger. The pain on Cang Yun's face also became more obvious.

The level of power they had reached far exceeded that of the last time when he had awakened the Blood Origin's power. The numbing pain corroded every inch of his nerves, and beads of sweat rolled down his cheeks. Cang Yun's face paled.

Seeing this situation, even the calm Cang Yuanfeng on the side could not help but reveal a look of worry. The hands on his back tightened slightly, and only after a long while, when he saw that the situation in the blood pool had stabilized, did he slowly loosen his grip.

At this point, more than forty spiritual beast blood essences had been used up. However, this was not the time to end. This was because the mysterious blood source within Cang Yun's body was still crazily absorbing energy like a bottomless pit.

Cang Yuanfeng's expression was very complicated, there was some anticipation, and also some worry, this situation meant that the mysterious blood source within Cang Yun's body was of a very high rank, and even somewhat unexpected. However, correspondingly, in order to awaken the spirit energy within, one would have to experience an extremely dangerous situation.

Thus, even though Cang Yuanfeng had experienced many storms, at this moment, he was still a little hesitant.

However, when he saw the Cang Yun, who was still seated cross-legged quietly within the blood pool with a trace of paleness on his face, the hesitation in Cang Yuan Feng's heart gradually turned into determination.

With a wave of his hand, he poured the last twenty or so spirit beast blood essence into the blood pool.

In an instant, the blood pool boiled once again …