To the bone devil, the crystal ball is as small as a grain of sand, but it does not hinder the bone devil's soul observation.

The skull demon was obviously shocked by the wizard's magical ability to pry the lever of the rules and magnify the tiny energy to infinity.

"Okay, taking advantage of the remaining energy in my space-time communication altar this time, let's do a regular solution transaction first, Your Excellency the Bone Demon, what do you need?"

Green raised his head, and the eyes of the element under the face of truth looked towards the bone demon. The exchange of tokens between the two parties just now consumed a lot of altar spar energy.

The bone demon laughed loudly during the communication.

"Hahahaha, I need the bones of powerful creatures, for example... this skull in your hand!"

The bone demon actually fell in love with the skull of the Lord of the World in Green's Horn Skull Magic Wand, which was the medium used by the stigmata wizards of Hessota to seal the shadow of nightmares!

The skull of the master of the world, this skull demon has vision.

Green sneered secretly in his heart, but on the surface he said calmly: "Want my magic wand? So, what can you give?"

Green doesn't think that the other party can come up with something that makes him abandon the magic staff of the goat's horns. In Green's thinking, the skull of the master of the world and the goat's horns are connected as one, and the value of the goat's horns magic staff ...

Although he sneered in his heart, out of the basic etiquette of equal communication and transactions with creatures in foreign worlds, Green did not immediately reject the other party before the other party offered the price.

Time and space transactions in distant foreign lands often represent the learning from each other in different worlds with different rules. Perhaps things that have no value in this world are priceless in the other world, especially when low-level creatures are trading.

Maybe the other party can come up with a higher-level treasure that makes Green's heart skip a beat and is willing to give up the magic wand of the goat's horn and evil skull?

After thinking about it for a while, the bone demon let out a "vomit", and Mu Ran spit out a ball of soul fire from his mouth.

The flame was purple-black and about two meters high. After falling into the bone's hand, it was squeezed hard, and it was immediately compressed into the size of a crystal ball. At the same time, the purple-black aura dissipated, turning into an extremely pure and transparent soul fire.

"This fire of the soul has a full twenty-five thousand Bolun, in terms of round value..."

Green was extremely disappointed. For Green, who frequently participated in world wars, collecting souls was extremely simple. Perhaps for the world of bone demons, souls were their standard currency and an important material to hoard. Not worth much to most wizards.

This skull demon seems to be an existence that communicates with creatures from other worlds all the year round. Sensitively aware of Green's displeasure, he hurriedly said, "So, what do you need in exchange?"

After thinking for a few breaths, Green said in a deep voice, "Materials that are more conducive to energy guidance, or...knowledge!"

"Knowledge?"

After the bone demon muttered to himself, he slowly shook his head. The other bone hand suddenly pulled out from the eye socket, and took out a large piece of blue ice?

"This is a world lord who broke into the bone demon world, and was killed by several powerful bone kings. The materials I picked up from the battle relics should meet your requirements."

Under the face of truth, Green's eyes suddenly grew a section of elemental light at the moment when the bone demon took out the piece of blue ice.

"Extremely cold crystal!"

Green recognized the materials that the bone demon took out at a glance.

Among the legendary alchemy materials of some ancient wizards. The extreme cold crystal is an advanced alchemy material of the same level as the Essence of Alienization of the Face of Green Truth.

The higher the level of alchemy materials, the more prominent the ductility requirements, so that the witchcraft can be made large or small, with endless changes. It has a myriad of wonderful uses, and the melting and condensation ductility of the extremely cold crystal is almost comparable to that of the heterogeneous marrow. At the same time, it has the high energy utilization of ice attribute.

Now for the extremely cold crystal held by the bone demon's palm. For Green, it is already like a hill.

Even if these extremely cold crystals are completely released, it will expand infinitely until the end of its own cold energy condensed. At that time, its size cannot be determined, and it may be as big as a real mountain.

This is the extensibility of the extreme cold crystal.

And if it collects its cold power, it is not surprising that this small iceberg of more than ten meters shrinks to the size of a fist.

Green fell silent, and the energy of the altar under his feet was being consumed bit by bit. Suddenly, Green seemed to have made a decision, and shouted: "Deal!"

Losing the magic wand with horns and skulls will indeed reduce Green's combat effectiveness at this time, but if he obtains this extremely cold crystal, then Green will have the basis for making higher-level magic wands!

In the eye sockets of the bone demon's purple-black skull filled with poisonous breath, the fire of the soul jumped excitedly, and then the extremely cold crystal became smaller and smaller in his palm, until it shrank to about the size of the Green crystal ball. On one side, Green slowly pushed the magic wand of the horned skull into the space-time vortex, and on the other side, the bone demon handed over the extremely cold crystal from another world.

Almost at the same time, the two got what each other wanted.

"Hahahaha, happy cooperation, strong foreign land, I hope we have the opportunity to cooperate next time, I am the head of the three souls, what is your name?"

The moment the huge bone demon got the magic wand of the horned skull, the other hand pulled out the magic wand directly. After taking a look at the metal material, it randomly stuffed it into the eye socket, and then it turned into a skull with horns. The head couldn't wait to throw it into his mouth, and swallowed it into his stomach in one gulp.

"Shadow of Despair!"

The extremely cold crystals the size of the crystal ball in Green's hand were lingering with blue cold air, but gradually gathered under the constraints of the arc of the Green World Clothes, and then the extremely cold crystals the size of the crystal ball in his hand shrank again, and gradually reduced to the size of a fist. Was thrown into the dimension gap by Green.

"Pleasant cooperation."

Following Green's words, the spar energy on the magic altar was exhausted, the space-time communication ended, and Green also recovered the half-step time perception of three eighteenths of a second.

call……

With a light sigh, Green was in a good mood.

"It's really interesting. No wonder in the world of the Demon Hunting Expedition, all creatures that can communicate with other worlds are regarded as prophets, saints, and wise men in the world..."

While muttering to himself, Green became invisible again under the robe of appearance, temporarily forgot about it, and continued to look through the old wizard's collection of books in the underground secret room.

After about five hourglass hours.

The old wizard brought cappuccino back to this underground laboratory again, and the old wizard buried his head in the experiment on the experiment table, as if he was still looking for the reason for the failure of yesterday's experiment, thinking that he had done something wrong. Gotta be flawed.

On the other side, the little girl hummed a song, skipped to the laboratory and ignored her grandfather, and when she saw the altar in the middle of the laboratory, she was suddenly taken aback.

Cappuccino walked slowly to the altar and observed it carefully for a while. He looked suspicious, then turned his head and began to look around the room, as if he noticed something different.

Immediately afterwards, the little girl went straight to the bookshelf where Green was standing! (to be continued...)