The Synthesis Wizard

In a brightly lit study, an air of tranquility filled the space.

Occasionally, the sound of pages turning broke the silence.

Su Nan sat behind his desk, engrossed in reading.

In the invisible void that others could not see, prompts indicating progress in spell learning appeared intermittently.

He had already successfully mastered **Shield Spell**.

Now, he was studying **Charm Human**, with the progress bar exceeding 90%. In another two or three days, he would master it successfully.

However, after that, he had no more spells to study.

"Although I commissioned the Fire Fox Trading Company, finding a suitable first-ring spell is not easy. I wonder how that is progressing?" 

Su Nan closed the book and murmured to himself.

Suddenly, his expression shifted, and he looked toward the door with a smile.

"Where have you run off to now? You haven't been causing any trouble, have you?"

"Hiss!" 

In response came a raspy sound.

As if lifting an invisible curtain, a giant lizard appeared near the doorway, shaking its head at Su Nan.

Perhaps having been confined in its cage for too long, the Hidden Dragon had fully let loose, running around the inner fortress every day.

Thanks to its perfect abilities of color-changing and reality transformation, it had not caused any panic.

To this day, no one had noticed its existence, not even Kei, who was a great knight.

Su Nan couldn't help but marvel at his incredible luck; his first contracted magical pet had awakened such powerful abilities.

In terms of physical strength, the Hidden Dragon was only at the level of a low-level great knight.

However, with the color-changing and reality transformation abilities, even a high-level great knight could easily fall victim to the Hidden Dragon's ambush.

Moreover, the Hidden Dragon had significant potential for physical strength development.

The reason lay in its dragon lizard bloodline.

According to the information provided by the magic cube, the concentration of the dragon lizard bloodline within the Hidden Dragon was currently at only 18.35%.

If its bloodline concentration could be increased, it would significantly enhance the Hidden Dragon's power.

"Increasing the bloodline concentration, huh?" 

A thoughtful look flickered in Su Nan's eyes.

He had tried giving the Hidden Dragon dragon blood potions, but the effects were negligible.

While the dragon blood potion contained components of sub-dragon blood, the effects had been altered to enhance physical conditioning. Even if the Hidden Dragon consumed it, the bloodline concentration wouldn't increase; it could only slightly enhance its physique.

After contemplating for a long while, Su Nan decided to take a different approach: directly perform a blood exchange on the Hidden Dragon.

With the magic cube, he could extract dragon lizard blood from the Hidden Dragon, synthesize it into a higher-grade sub-dragon blood, and then inject it back into the Hidden Dragon, achieving the goal of blood exchange.

By repeatedly extracting blood, synthesizing it into a higher grade, and reinfusing it, he could continuously increase the Hidden Dragon's bloodline!

It was worth a try!

"Does this count as exploiting a bug?" 

Su Nan chuckled at himself.

Of course, this process would be rather lengthy.

After all, the amount of synthesized blood would significantly decrease, and the reinfused blood would not compensate for what was drawn out; he would need to wait for the Hidden Dragon to regenerate its blood on its own.

Thus, blood exchange could only be performed after a certain interval.

As for extracting blood from the Black Scale Lizard captives, not only would the small amount of blood synthesized be negligible, but the incompatibility between different individuals would also increase the difficulty and risk of the blood exchange procedure, which was enough to dissuade Su Nan from that idea.

Nevertheless, blood exchange seemed quite feasible, and Su Nan felt it was worth a shot.

"Just in time, my biotransformation skill has reached level 2, so performing a blood exchange should be easy."

Under Su Nan's keen gaze, the Hidden Dragon lying on the ground shivered suddenly, recalling the fear it felt during previous blood extractions.

**Late at night.**

The silver moon hung high in the sky, casting a veil-like moonlight.

In the darkness, two figures stealthily climbed over a wall and slipped into the courtyard.

Looking at the silent courtyard, the two exchanged glances, both wearing puzzled expressions.

How could the residence of the brother of the lord of Blackstone City be so devoid of guards?

Had the guards in the inner fortress of Blackstone City become this lax?

If the guards at the other target were in the same situation, their assassination mission would be much easier.

After a brief exchange of glances, the two men in dark clothing placed their hands on their sword hilts and moved silently toward the corridor deep within the courtyard.

According to the information from their spies, Su Nan rarely allowed servants into his yard, so they had no idea which room he slept in and had to search each room one by one.

Fortunately, there were no guards here, so they didn't have to worry about being discovered due to prolonged searches.

Under the cover of night, the two moved smoothly without encountering any obstacles.

Yet, for some reason, they felt a lingering sense of unease, a chill creeping up their spines, as if they were being watched by some dangerous presence.

However, looking around, there was not a single shadow in sight.

The two dismissed their feelings as over-caution and shook their heads, continuing their infiltration.

As they crossed the courtyard, they reached the end of the long corridor.

Seeing the tightly shut door at the end of the corridor, they both instinctively tightened their grips on their swords and quietly unsheathed them.

However, just as they drew their swords, their inner sense of unease suddenly intensified, a cold dread shooting up their spines.

In that instant, both men felt a wave of fear wash over them.

Years of combat experience led them to hesitate not for a moment; they decisively leapt to the sides.

However, the man on the right had barely jumped three or four meters when his body suddenly froze in midair, his chest erupting with several arc-shaped blood holes, twisting his head and feet into an unnatural angle.

The other assassin, landing and regaining his footing, looked up to see this scene, his pupils instantly shrinking to the size of pinheads.

The bright moonlight shone through the spraying blood mist, revealing the outline of a giant beast over ten meters long, covered in scales, with its limbs planted on the ground.

Its mouth, filled with sharp teeth, was tightly clamped around his companion, blood pouring from the twitching body.

It was evident that his companion was already beyond saving.

"By the stars above, what kind of monster is this?!" 

The man gasped in shock.

He had encountered fierce beasts before, but a creature over ten meters long that could turn invisible and had eluded their detection was something he had never heard of!

Thud!

The monster released the corpse, letting out a hissing sound, and its massive body slowly faded back into invisibility under the moonlight.

The man felt his scalp tingle, and without a second thought, he turned to flee, dashing toward the courtyard wall, preparing to leap over it.

But in the next second, he suddenly felt as if he had been violently struck by a massive rock, the sound of bones cracking ringing out as he was sent flying over ten meters, landing heavily on the ground.

Despite the severe blow, the man refused to give up. He coughed out a mouthful of blood and struggled to rise, wanting to escape. But then he felt a heaviness, as if something was pressing down on his back.

The next second, a tide of pain crashed over him, drowning his consciousness.

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