Needless to say, after paying 800 catties of white rice and 20 machetes, as well as nearly 30 catties of sauces and spices, Ye Feiyu got 23 pieces of dog's head gold, plus 1,000 complete skins, including bear skins, leopard skins, antelope skins and deer skins!

Twenty-three pieces of dog's head gold add up to more than 100 kilograms, almost five kilograms a piece. The density of gold is extremely high, and the five-kilogram dog's head gold is actually not very large, but so many large pieces of dog's head gold are really rare, that is, these undeveloped backward places in the Americas, open-pit gold veins can be found.

In the space-time store, ten kilograms of gold can be exchanged for a primary source crystal, don't look at more than a hundred catties of doghead gold, but counting the purity, it is only eleven source crystals sold.

However, the space-time store is not really black to the end, a piece of more than three kilograms of dog's head gold is less than the value of a source crystal, and in the end, it was left for Ye Feiyu.

The fur of these large beasts is worth more than otter skin, and there are a lot of source crystals that can be exchanged for a lot, which is worth four primary source crystals, which is an unexpected surprise.

Similarly, more than a dozen skins were not sold because they were less than the value of one source crystal.

Originally, the remaining gold and skins could be exchanged for another source crystal, Ye Feiyu thought about it for a while, but did not do so, and planned to go back to the earth to exchange some cash.

In this plane trip, Ye Feiyu clearly realized that in order to safely carry out dimensional colonization, a huge backing support is necessary, and it is essential to leave some materials to develop the strength of the earth.

Under Ye Feiyu's introduction, the people of the Katak tribe were recognized by the grizzly tribe and agreed that they would join the grizzly tribe and be protected by the grizzly tribe.

During the two days that Ye Feiyu and the Grizzly Bear Tribe were trading, Blusman went back and told the rest of the Kathak tribe the news, and after discussing with the Kathak, they went to the Bison Valley together.

Although Ye Feiyu is hot at the open-pit gold mine of Bison Valley, the materials that can be exchanged in his hands are basically spent, such as Huamei porcelain, the Indians don't care about it at all, even if Ye Feiyu saves Bakxi, Sabul can't repay Ye Feiyu with the wealth of the entire tribe, without materials, Ye Feiyu naturally can't let the Grizzly Bear tribe collect gold sand for him in exchange for fur.

However, when Ye Feiyu packed up his things and was about to leave Bison Valley, suddenly, the primary plane colonization assistance system, which had been silent for a long time, suddenly popped up a prompt: Attention, a plane key has been detected nearby, and the plane key can enter the corresponding plane through the plane key.

Then, two half-curved three-dimensional images of fangs emerged, apparently scanned by unknown means by the plane instrument.

Ye Feiyu couldn't help but look around when he was surprised, and it took a long time to find that there was a little boy next to the great wizard of the grizzly tribe, who looked a little similar to the great wizard, and there was a bone tooth necklace around his neck, among which the two longest crystal clear bone teeth were the same as the bone teeth scanned by the space-time instrument.

Obviously, the scanning function of the space-time instrument has a certain distance limit, and the little boy did not get close to Ye Feiyu before, so the space-time instrument did not discover the existence of the plane key.

This bone tooth is the mascot of the wizard's inheritance, even if Ye Feiyu becomes the spokesperson of the gods in the eyes of the people of the grizzly tribe, the great wizard is unwilling to trade the bone tooth to Ye Feiyu.

But this great wizard has a noble status in the Grizzly Tribe, and Sabul can't force him.

In the end, Ye Feiyu gritted his teeth and took out the crossbow, as well as a stab-proof suit he was wearing, showing the power of the crossbow and the role of the stab-proof suit, saying that he only needed two bone teeth, not the entire bone tooth necklace, so that the great wizard was relieved and took off the two bone teeth and handed them to Ye Feiyu.

Of course, these things, for Ye Feiyu, will be eliminated in the future, and it has nothing to do with trading them to the Grizzly Bear Tribe, and exchanging them for the keys of the two planes is definitely a big advantage.

Turning his attention to the bone teeth, he quickly came up with specific information: the tooth of the tyrannosaurus, the product of the third-level plane KN237 symbol, and the key of the plane.

The information is very simple, but there is a red line of supplementary warning surname prompt at the back:

"The key of the plane, the symbol of each plane, is lost to other planes due to the turbulence of time and space, the collection and exchange of plane colonists, etc., and the key of the plane can be consumed to enter the corresponding plane."

"Warning! When you get the key to the strange plane, do not blindly enter the strange plane, as both native creatures and alien colonists may inflict fatal damage on you. ”

"Hint, the KN237 plane has a public mission, activate the plane task system!"

Ye Feiyu curiously opened the so-called plane task system selection, and saw that there were actually three tasks on it, all marked with KN237 space-time coordinates, which were to collect the blue blood of the blue blood dragon and the poisonous claws of the red pterodactyl, as well as to collect the eggs of the crocodile.

The rewards for these three tasks are quite a lot, one liter of blue-blooded dragon's blood can be exchanged for three primary source crystals or an intermediate genetic potion, and the poisonous claws of the red pterodactyl dragon that are more than three inches long can be exchanged for a primary source crystal, and ten poisonous claws can be exchanged for a first-level basic strengthening qualification. And the crocodile's egg, one is worth seven primary source crystals.

However, KN237 is a third-level plane, the same as the level of the earth plane, looking at the mission introduction, it is likely that there will be colonists from other planes, Ye Feiyu has no foundation now, so naturally he will not go to KN237 easily.

Then he opened the space-time store with his surname, and found that the key of the Tyrannosaurus Dragon's Tooth Plane can also be sold to the space-time store, and the value is not low, one bone tooth is worth three primary source crystals, which is almost comparable to nearly a thousand precious skins!

From the difference between the purchase and sale price of gold, we can roughly judge the true value of these two bone teeth. Ye Feiyu now has seventeen primary source crystals, and he can fully pay the rent of six primary source crystals next month, so he didn't sell the bone teeth to the space-time store, anyway, it won't be too late to sell them when the source crystals are not enough.

After selling the gold and skins, the value added up to more than ten source crystals, and the permission level of the space-time store was upgraded to one level, and there was one more purchase option, Ye Feiyu opened it curiously, which were the four categories of life, evolution, military and auction.

It's a pity that he only found goods available for purchase in the evolution category, and the other three categories were all empty when opened, and under the evolution category, there were only two commodities: the first-level Brute Bull Gene Elixir and the first-level Swift Wind Beast Gene Elixir.

Ye Feiyu now knows that he searched for the price of gold before, and although the price of buying gold was extremely crumbling, he was not even qualified to buy gold!

First-level Brute Bull Gene Elixir: It can increase the user's strength by 30 to 50 kilograms and the same resistance to blows, and it is ineffective against targets who have used higher-level genetic agents of the same type.

Level 1 Swift Wind Beast Gene Elixir: It can increase the user's speed to a certain extent, and it is ineffective for the target of using a higher level of the same type of gene potion, the method of use, body injection, and the price is a primary source crystal.

Ye Feiyu has now left the Bison Valley, and has asked Blusman and others to come over, in the four days of PE131, he has suffered enough from lack of strength, and there are genetic pills that can increase strength and speed, although the price is expensive, after hesitating for a moment, he still gritted his teeth and bought it.

The genetic medicine is very human-like, and it comes out as a needle drug, a metal shell, a small round tube, which looks like a sci-fi taste, and can be injected directly into the body, without being injected into the blood vessels to take effect.

Since he bought it, Ye Feiyu didn't hesitate, put the small round tube on his arm, pressed the injection button, and the small round tube popped out a needle tube and pierced Ye Feiyu's arm, automatically injecting five or six milliliters of medicine into Ye Feiyu's body.

The two tubes of genetic medicine entered the body, similar to when they got the innate ability, the effect was extremely fast, and a warmth appeared in the body, and then Ye Feiyu felt that his body was loosened, and the feeling of fatigue disappeared, although he did not increase any strength, it was almost the same as when he was on earth.

If you want to return to the Earth plane, without the suppression of the power of the plane, your strength and speed will increase a lot.

"Do you mark the teleportation coordinates? When entering the plane, you can select the marked coordinates, and each plane can be marked with three coordinates for free. ”

The prompt of the primary plane colonization assistance system is very timely, and when Ye Feiyu found a hidden cave and activated the plane passage to prepare to go back to Earth, the primary plane colonization assistance system popped up such a prompt.

Originally, Ye Feiyu was worried about whether he would come here again next time he went to PE131, but he had already agreed with the people of the Grizzly Bear tribe to let them collect Jinsha and Goutou Gold as much as possible, and next time they would bring more food, sauces and weapons, and mark the coordinates of the place where they left, and if they came again, they could appear here directly.

When opening the plane channel, the same warning words appeared as before, "The PE133 plane channel has been opened, the maximum duration of the standard plane is one minute, and every more minute after that, a primary source crystal needs to be consumed, please pass through and close the space-time channel as soon as possible." ”

However, there is an extra line at the end, which once again surfaces the black-hearted nature of the space-time instrument: "Note that opening the passage to the PE131 plane within three days requires the consumption of a primary source crystal each time." ”

When the plane channel was opened, there were random and designated teleportation options on it, which automatically recorded the main plane teleportation coordinates when Ye Feiyu came, which was the small air-raid shelter in Wangniu Mountain, and Ye Feiyu naturally chose the option to specify the teleportation.

These four days may be something that Ye Feiyu will never forget for the rest of his life, but for the entire earth, it is only a blink of an eye, and the situation in the air-raid shelter has not changed much from when Ye Feiyu left.

Out of the air-raid shelter, Ye Feiyu did not go back to school immediately, but went to Xijiang City, found a hotel to open a room, took a hot bath, and washed away all the bad smell and fatigue of his body.

In PE131, on the first day, Ye Feiyu washed his body in Xiaohe, and when he arrived at the three days when he traded with the people of the grizzly tribe in the Bison Valley, he didn't have the opportunity to take a bath, although he prepared a change of clothes, the smell of sweat on his body was still quite big, which made Ye Feiyu feel uncomfortable.

When I checked out, I spent an extra fifty yuan to compensate for the water supply valve of the water heater that was wrung by Ye Feiyu in the bathroom.

After the injection of the first-level brute cow elixir, as soon as he returned to the earth, Ye Feiyu felt that his strength had increased greatly, and his whole body was much lighter, and it was estimated that his strength had increased by at least more than ninety catties, which was almost the maximum increase limit of the first-level brute cow gene potion.

The valve of the water heater in the hotel was aging, and Ye Feiyu couldn't adapt to the sudden increase in strength, so he overused his head and accidentally screwed the valve.

***

Rushing to the list to ask for votes and click to collect, I am very grateful to the frozen heart brothers for generously rewarding more than 10,000 coins! Sanren will continue to work hard!

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