**Blackstone Castle, Courtyard.**
Su Nan stood in front of the banyan tree, staring intently at the trunk.
To the naked eye, there was nothing in front of the trunk, and even upon close inspection, nothing could be discerned.
Only Su Nan could perceive that something indeed existed there.
"Charge!" Su Nan suddenly commanded.
The moment his words fell, a piercing whistle echoed through the air.
Although nothing was visible, a distinct rustling sound could be heard, as if some creature was rapidly crawling along the ground.
At that moment, a subtle distortion finally appeared in the previously empty void.
"Done." Su Nan stated.
The next moment, over ten meters away, the figure of a giant lizard materialized out of thin air.
Its amber vertical pupils reflected a human-like eagerness, letting out a low, pleading call, seemingly seeking Su Nan's praise.
Su Nan chuckled and said, "Good job."
After more than half a month of experiments and over ten failures, he finally succeeded in transferring the color-changing ability of the Green Chameleon to the giant lizard and further enhancing its effect.
Now, with the ability to change color, the giant lizard could instantly alter its form to match the environment, achieving near invisibility.
Only during high-speed sprints would it leave a slight trace due to the lag in form transformation.
Of course, unless it was a wizard apprentice or a knight with exceptional eyesight, ordinary people could not detect this trace at all.
However, this ability did have its drawbacks.
When stationary, it was fine, but once it started moving, the sound of its footsteps and the friction with objects would reveal its location.
Su Nan had no good solution for this.
After all, even the true **Invisibility Spell** had the same flaws.
"Flaws are just flaws. The color-changing ability is merely a foundation for transforming magical pets."
"I hope you can awaken even more powerful abilities based on this color-changing ability."
The giant lizard didn't quite understand Su Nan's words and let out a cautious low call.
Su Nan didn't mind; he used his Mage Hand to scoop up the giant lizard and walked into the laboratory.
This was a temporary laboratory that had been cleared out.
On the floor, a contract formation composed of countless intricate patterns had already been drawn, shining with a faint dark hue under the candlelight, radiating an indescribable sense of wonder.
He placed the giant lizard in the center of the formation and then cast a Sleep Spell, causing the somewhat anxious giant lizard to fall into a deep slumber.
Su Nan then used a small knife to cut his thumb and pressed it against the edge of the formation.
As blood flowed along the lines, the formation suddenly glowed brightly.
Countless black and red mists emerged from thin air, swirling around to envelop and cover the giant lizard's massive body, seeping into its rough, thick skin.
Crack! Crack!
A series of crunching sounds erupted suddenly as the giant lizard's bones expanded, piercing through its thick skin, glimmering white in the air.
In a short time, the giant lizard's entire body resembled a giant skeleton nearing ten meters in length, draped in tattered flesh, curled up on the ground, nearly filling the entire laboratory floor.
Su Nan had to retreat to the doorway, but his gaze never wavered from the giant lizard, gripping a plant rune gem in his hand, ready to activate it to heal the giant lizard at any moment.
The transformation process for magical pets was not 100% successful.
The stronger the creature, the lower the success rate of transforming it into a magical pet.
For a creature like the giant lizard, which possessed dragon lizard blood, the failure rate was at least over 50%.
Even with the assistance of a rune gem, it could only marginally increase the success rate.
The giant lizard's bones continued to grow, quickly exceeding fifteen meters, but there were no signs of flesh proliferation, resembling a skeletal giant lizard.
Seeing this, Su Nan decisively activated the rune gem, and a gentle green light enveloped the giant lizard's entire body.
However, the giant lizard remained motionless, showing no changes.
"Did it fail?"
Su Nan frowned, sighing.
But in the next second, a sudden change occurred.
Countless black oval scales, the size of an adult's palm, suddenly grew on the giant lizard's tattered skin, spreading rapidly across its body at a visible speed, quickly covering the exposed bones.
Once those scales formed, their smooth surfaces flashed under the candlelight, gradually blending into the surrounding environment, ultimately completely concealing the giant lizard's massive body.
"Color-changing ability? No, wait, it seems a bit different!"
Just as Su Nan was filled with doubt, the 'disappeared' giant lizard suddenly reappeared, its appearance having undergone a tremendous transformation compared to before.
The original giant lizard was already seven or eight meters long, a true beast, but after the transformation, its body had swollen to more than double, resembling a small mountain.
However, despite its massive size, it was still slender compared to its length, appearing not bulky but rather extremely swift and agile.
It rushed up to Su Nan, bending its body softly into a circle, its large pupils staring at him intently.
Though its appearance was quite ferocious, through the deep connection, Su Nan could feel the affection and closeness the giant lizard conveyed.
Magical pets and their masters could sense each other's emotions within a certain distance, similar to telepathy, which wizards referred to as emotional connection.
As the wizard's mental power increased, they would later develop shared vision, shared spells, and even more spell-like abilities.
Moreover, the life of a magical pet was also bound to its master.
Once the master died, the magical pet's body and soul would vanish.
Thus, in the magical pet's perception, the master was the closest and most loyal being in the world.
"You've worked hard."
Su Nan reached out to stroke the giant lizard's head, and it let out a low, affectionate call, cautiously rubbing its massive head against his hand, showing intimacy.
Against its massive size, there was an inexplicable sense of contrast.
"Let's go outside to test your abilities."
The man and lizard quickly moved to the courtyard.
The transformation process for the magical pet had taken quite some time, and night had already fallen outside.
At Su Nan's command, the giant lizard leaped forward with incredible agility, soaring four or five meters into the air, and under the moonlight, its slender body suddenly vanished from head to tail.
Then, a loud crack was heard as a nearby banyan tree inexplicably broke, and a massive branch crashed to the ground.
"Both strength and physical power have significantly increased. In terms of physique alone, it's probably no longer inferior to a great knight, but we still need to test it further."
The giant lizard's physical strength and color-changing ability had both been enhanced differently; however, these were already existing powers, clearly not newly awakened abilities.
Su Nan continued to watch expectantly.
After charging forward a distance, the giant lizard reappeared and turned back to crash into a tree stump again.
But this time, its body suddenly transformed into nothingness mid-way, passing through the tree stump like a phantom.
"This is the ability of reality transformation!"
Su Nan's face lit up with delight.
From the giant lizard's previous performance, it seemed it could instantly transform its body into a phantom, allowing it to traverse obstacles.
Knowing that the transformed giant lizard already possessed powerful destructive power and agile speed, combined with the color-changing ability and the ability to pass through obstacles, it was simply the perfect killer!
Its combat power had instantaneously increased by several levels!
"What a perfect combination of abilities!"
Su Nan couldn't help but exclaim.
The reality transformation ability instantly compensated for the flaw of the color-changing ability, which couldn't conceal sound, and now the giant lizard possessed a truly perfect invisibility ability.
Upon hearing Su Nan's words, the giant lizard let out an excited, triumphant roar.
Su Nan smiled slightly: "We can't keep calling you 'giant lizard' anymore; we need to give you a new name."
After a moment of thought, he quickly came up with an idea.
"Let's call you Hidden Dragon."