Soon the three of them followed the wraiths to the bottom of the valley, and a large collection field under the valley has begun to officially operate, these collection fields are not magical appendages such as haunted gold mines, but real collection fields, because the triumvirate who have made up their minds not to rely on the super artifact of the undead base has now begun to gradually try to get rid of the comfort of the undead base, and the ghouls and crypt spiders have been drawn out of a whole million numbers to go down to the canyon to mine various primordial ores.

And some of the blacksmith's skills were also taken by the Big Three from Wang Fan (Wang Fan was exchanged again), and then taught some primordial undead who had grown up step by step from the lowest level, to say where did these primordial undead come from?

Don't forget that the Empire of the Undead has polluted the southern swamp of the entire Desolate Beast Plane into a death swamp, and the corpses that died in the death swamp were naturally eroded by the thick death gas, and then recovered, and the resurrected corpses were the lowest level of the undead began to kill each other, and with the continuous devouring of the opponent's soul fire, hundreds of dead finally came alive and transformed into level 4-5 undead with a certain amount of wisdom.

And all of this happened with the acquiescence of the Big Three and Wang Fan, naturally when they grew to this point, it was time for the Big Three to close the net, this is the same primordial undead as the undead in the middle thousand undead plane!

Although they are not strong yet, a Frost Dragon can beat them, but don't forget that the Frost Dragon is only a product of the Super Artifact Undead Base after all, so its strength will never improve by itself, so it is not a matter of time before it is surpassed by these Primordial Undead who can improve their strength by self-cultivation?

And mining these ores now is to prepare for arming more proto-undead in the future, otherwise it would be really good to directly use claws and teeth like in the undead plane?

However, the Big Three didn't care about this now, because they had more important things to do, so the Big Three didn't stop for half a minute, and once again accelerated and followed closely behind the Wraith.

Finally, the Big Three arrived at their destination. In a large karst cave at the bottom of the canyon, the entire karst cave is full of stalactites, and the mellow earth elemental power is also exuding its own aura around it, showing its extraordinary.

This time, the Big Three stopped, it was obvious that there was such a strong aura of earth elements here, either there were rare treasures or genius earth treasures, and their leader Wang Fan was an absolute earth attribute, so it was natural to go and see what kind of good thing this was.

The three of them immediately looked at each other and quickly understood what each other meant, and then Kel'thugad and Anubarak immediately continued to chase the wraith, leaving the Death Knight Grand Duke Raven to move towards the earth-type treasure.

The reason why Raven left the treasure hunt is not the reason why Raven's strength is the weakest, but because Grand Duke Raven's death magic is not as good as Anubarak, who has entered the legend, and not as good as Kel'thugad, who is a professional mage, in terms of quality and quantity, and the next final link requires a lot of mana, so the most suitable is for Grand Duke Raven to perform such a task that does not require too much magic.

Let's not talk about the whereabouts of Grand Duke Raven, continue to talk about the other two of the Big Three, Anubarak and Kel'thugad are still closely following behind the resentful spirits, passing through the stalactite soil slopes that can only be formed for thousands of years, and crossing a huge underground dark river, coming to a small hole full of dazzling crystals on the other side of the river (the small hole is 7 meters high and 3 meters wide), and then directly through the small hole to a natural crystal square, and those resentful spirits have also stopped here, obviously the destination has arrived!

Sure enough, after a while, a black whirlpool began to rise from the resentful spirits, and one of the resentful spirits in front of it was immediately sucked into the black whirlpool without any resistance, and disappeared without a trace.

Of course, this is not a wormhole, but a plane channel, a plane channel exclusive to the dead, a simplified version of a small reincarnation made by the universe in order to improve reincarnation, and the other side of the black vortex is a special plane that exists in the plane: the underworld.

To put it simply, because of the rebirth of this universe, the rules are not perfect, so some places are not as orderly as those described in the myths and illusions of Wang Fan's previous life, just like the problem of reincarnation, when the universe was just born, reincarnation was not yet there!

But with the advent of the underworld, the dead have a place to go, so the situation of the soul being scattered can also disappear (theoretically disappearing), but in the end it still doesn't work, because the undead who can reach the underworld are the souls of the strong, and the other souls still have to die.

As a result, the Great Cosmic Will spent a lot of time debugging, and finally this guidance mechanism was born.

The so-called guidance mechanism is to attract the soul of the dead creature near the heart of the plane, and then enter the tunnel of the dead through the energy support of the heart of the plane, and enter the underworld.

This knowledge can be said to be one of the rare world secrets, thanks to Wang Fan's promotion to the epic level, and the inheritance is still the knowledge of the undead god system as the largest force in the underworld, so for this kind of secret things about the reincarnation of the dead, it is not necessarily necessary to change to other god systems, after all, the dead have the way of the dead!

Then the two giants began to look for it, because although the power required to open the passage of the dead is not large, the quality requirements are extremely high, and it is generally difficult to open the passage of the dead if it is not the power of the plane or the gods, so the heart of the plane must be near this passage of the dead. Sure enough, the effort paid off, and Kel'thugad soon discovered a triangular crystal that was different from the others, this crystal seemed to be the same as the surrounding crystals, but if you looked closely, you could see that its interior was fluid, not solid.

However, in order to make sure that it was correct, Kel'thugad experimented with his death magic.

"Wow"

With the injection of death magic, the whole crystal began to flash with thousands of colored lights, and then the death magic power was absorbed into the heart of the plane, yes, it is the heart of the plane, because this scene Kel'thugad has also seen it on the heart of the diamond-shaped plane of the desolate beast plane, and the characteristics of absorbing and containing any energy are not something else that can be easily imitated!

And with the outbreak of colored light, Anubarak also noticed this, the two looked at each other and smiled, the plan was basically successful!