To a certain extent, the value of this skill evolution book even surpassed the legendary treasure [Dream Gem].
The effect of the Dream Gem is that it can change the nature of any skill and also raise the skill grade by one level based on its original level.
Whereas this unique skill evolution book can elevate any ordinary skill to the unique level, directly jumping two grades.
The most important point is: the Dream Gem was the sole first-clear reward from the Nightmare Abyss.
But this skill evolution book, within the Gate of Immortality, it is absolutely impossible that there is only this one.
The book that Zhang Yue has obtained at this moment can be understood as the reward from this map of [Forest of Tigers].
The total number of maps in the Gate of Immortality is said to be no less than a hundred.
If luck is good enough, even in the end, the number of unique skill evolution books obtained may not be limited to just one.
Of course, what is being referred to here is the unique.
If one is not greedy for the unique, and only rare ones are acceptable, then there would be too many.
As for Zhang Yue, what he is pursuing, naturally, is the unique.
It takes ten rare ones to combine into one unique.
For the strength gap between rare skills and unique skills, it is indeed worth it.
Thus, after dealing with that Devourer Beast, Zhang Yue once again swept through the entire Forest of Tigers and harvested an additional three silver ordinary treasure chests.
The value of ordinary treasure chests, although far less than core chests, still contains some good treasures.
Three treasure chests yielded a large amount of gold coins and high-level materials.
With this Devourer Beast guarding it, it's no wonder that until now, no one had cleared this Forest of Tigers.
Zhang Yue left the forest, and as soon as he reached outside, he ran into Hidden Dragon, who seemed to have been waiting there for quite some time.
"You cleared one map so quickly?", Zhang Yue looked at Hidden Dragon and asked.
Hidden Dragon shook his head, "I was just wandering around nearby, thinking I might be able to refresh a Life and Death Gate."
Hidden Dragon really did have good insight.
Only the boss guarding the Life Gate can drop fragments of the Resurrection God Stone, or even a complete Resurrection God Stone.
And even if one encounters the Death Gate, the rewards obtained from killing the monsters inside are far more valuable than the map rewards within the Gate of Immortality domain.
So finding the Life and Death Gate is the real kingly way.
However, the Life and Death Gate needs to be refreshed probabilistically through killing monsters inside the Gate of Immortality.
So Zhang Yue's plan is to explore those maps that haven't been explored yet while killing monsters to refresh the Life and Death Gate.
At this moment, Hidden Dragon asked Zhang Yue in return, "Bro, you already cleared this map so quickly?"
"How was it? Did you take care of that beast inside?"
"Mm, it's dead."
As soon as Zhang Yue finished speaking, Hidden Dragon immediately showed an expression of extreme excitement.
It seemed that Zhang Yue had killed that Devourer Beast, and he was very happy.
"What's wrong, you got a grudge against that Devourer Beast?"
Hidden Dragon was stunned for a moment and then said, "Of course! The first time I came in, I was killed by it!"
Zhang Yue nodded thoughtfully, "Let's go, to the next place."
Hidden Dragon resumed acting as the guide and led Zhang Yue on.
Along the way, they avoided several maps and arrived at an abyss.
Hidden Dragon pointed at the abyss and said to Zhang Yue, "Here, the Abyss of Undead, known as one of the three hardest maps in the Gate of Immortality. It's said that everyone who has gone in was eliminated inside, not a single one came out alive, so the treasures inside must definitely not have been collected yet."
Without saying a word, Zhang Yue directly jumped into the abyss.
Hidden Dragon did not follow in, but wandered around nearby.
———
[Within the Abyss]
The shore Zhang Yue arrived at was a ruined city that seemed to have been abandoned for decades.
The city was filled with a strong aura of the undead.
As facts proved: this "guide" Hidden Dragon, indeed did have some capability.
Just like the Forest of Tigers just now, this Abyss of Undead really was another nearly undeveloped map, almost ninety percent new.
Zhang Yue took a few random steps and saw a silver treasure chest that hadn't been opened, quietly placed on the ground.
Just as Zhang Yue was about to approach the treasure chest.
Suddenly, two large blood-red barriers emerged from both sides of the chest on the ground.
Immediately after, a group of skeleton warriors holding swords and shields, with not a shred of flesh on their bodies, sprang out from the barrier.
ROAR! ROAR! ROAR! ROAR!
Very quickly, an undead legion of more than a hundred skeleton warriors appeared.
They raised their broadswords and charged at Zhang Yue.
A group of level 124 [Undead Warriors], to the Armageddon Black Dragon, were nothing but cannon fodder.
BOOM! BOOM!
Two AOE attacks easily wiped out the undead legion.
The Apex Predator quickly leaped forward, opened the chest, retrieved everything inside, and delivered it to Zhang Yue.
After clearing the battle spoils, Zhang Yue continued onward.
Along the way, Zhang Yue once again encountered that same Devourer Beast from the Forest of Tigers.
And it was exactly the same as before, starting as a lord-level monster.
In a map filled with undead, the appearance of such a Devourer Beast was truly abrupt.
It obviously gave the impression that this guy wasn't a native monster.
But since it appeared in front of Zhang Yue, then Zhang Yue had the duty to send it to heaven.
Zhang Yue had just picked up his staff.
The Apex Predator swiftly drew its blade and launched a surprise attack.
SLASH! SLASH! SLASH!
A flurry of swift strikes chopped it down before Zhang Yue could even cast a spell, instantly killing the Devourer Beast.
'What a teammate.'
Zhang Yue felt like he was about to be out of a job.
Since entering the Gate of Immortality up to now, he hadn't even had a chance to make a move.
Sure enough, just like the previous Devourer Beast.
After this lord-level Devourer Beast was killed, it evolved by absorbing the life force of nearby undead warriors, becoming a 20-star BOSS.
The Apex Predator killed it again, and the guy evolved once more into a 21-star BOSS.
Afterward, a third evolution, God-level BOSS.
When it was killed in its God-level BOSS form, that was the end of it.
Reward settlement, and it dropped a golden core treasure chest.
Zhang Yue opened the treasure chest and once again obtained a [Rare Skill Evolution Book].
Now he had two books; if he gets eight more, he can get another select unique-level skill.
Zhang Yue had already made his choice for this skill evolution's target.
Decisively, a lightning-type skill, Thunderous Wrath.
Of course, if luck permits and he can get two unique skill evolution books, then he'll upgrade Shattered Thunder too to the unique level.
Both are ordinary lightning-type skills. Their evolution paths are especially important for Zhang Yue.
This time, after finishing the battle.
WHOOSH!
Suddenly, a white light screen emerged before Zhang Yue's eyes.
"The Life and Death Gate, finally refreshed?"
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