The stall owner reached out and touched the gold baht, and remembered that when the young man had just left, he was still smiling at him, and by the way, the young man seemed to glance at the cart intentionally.

Could it be that the young man deliberately left the gold baht, and what was he doing it for?

The stall owner had a lot of puzzles, but based on what happened before, he knew that this young man with a certain amount of gold baht gave him, he gave the other party an umbrella, and the other party quietly gave him a gold baht.

"This young man is a good person, be kind to others, and there will definitely be good rewards!" The stall owner couldn't help but moisten his eyes when he thought of this, and looked affectionately at the tall figure that had long disappeared in the rain curtain, and his heart was surging.

......

Jiang Feng had walked far away, but suddenly his expression was shocked, and he unconsciously turned his head to look back.

In this rain, he was less than 100 meters away from the stall owner who sold umbrellas, but the other party obviously couldn't see him, but Jiang Feng could clearly see the other party's expression with his eagle eye.

This person is grateful to himself, grateful to himself for giving the other party a gold baht.

This golden baht is nothing in Jiang Feng's eyes, because he has tens of millions of gold baht, and he can also make a lot of money quickly with one of the skills he has mastered, but he knows that this golden baht is very useful in the stall owner!

"I also want to thank you, you have inspired me, let me get inspiration!" Jiang Feng shook his head and bowed deeply in the direction of the stall owner to express his gratitude.

......

Jiang Feng walked around the street, although it rained, and his trouser legs and shoes were wet, but his heart was happy.

Through the stall owner's demonstration of holding an umbrella, Jiang Feng already had the prototype of a lightning egg short-range attack weapon in his head.

Yes, the principle should be similar to that of the umbrella, using the tension spring to instantly open an almost umbrella-shaped attacker, and the needle-shaped lightning egg arranged on the umbrella is shot out at the same time, presenting a large-area all-round attack without dead ends, which catches the opponent off guard, with suddenness and unpredictability.

Once this short-range attack weapon is successfully developed, it will become a rare life-saving magic weapon after he encounters a fierce enemy.

After preparing a sumptuous dinner for himself, Jiang Feng officially began the development of his Thunderbolt Egg short-range attacker.

First of all, the material must be shaped like an umbrella, which can effectively confuse the other party, and secondly, the material requirements of the umbrella-like structure are very high, with good flexibility and super ejection ability.

However, in terms of umbrella-like materials, Jiang Feng did encounter a lot of trouble, from ordinary animal skins to demonic beast skins, without exception, he was not satisfied.

Looking at the drawings that had been designed in front of him, Jiang Feng sighed for a while, it was too difficult to develop new things, there was no trace at all, so he could only walk by feeling, take one step at a time, and go wherever he went.

After thinking about it, Jiang Feng suddenly felt that there was a mistake in the design of his drawings, because even if the prototype of the short-range attack weapon was set up, according to this umbrella-like structure, it would definitely not be able to exert the desired effect, at least it would be greatly reduced.

So, what's the problem?

"If you don't break it, you can't stand it, you will stand after it is broken!" Jiang Feng muttered several times in a row before he groaned slightly, and then saw that the drawing was in a clump and thrown in the trash.

The design is too far from your ideal effect, and you have to start over.

So, where to start?

Jiang Feng's gaze finally stopped on the Shouyang Wanhua Furnace on the side, and his eagle eye penetrated the surface of the Shouyang Wanhua Furnace and saw the furnace structure inside.

The design of the fire outlet of Shouyang Wanhua furnace is very ingenious, there are a total of 9981 fire outlets, which are densely spread in the furnace, so that the flame can be evenly spread throughout the furnace to achieve the best effect.

By the way, why can't you design nine hundred and eighty-one attack ports like the Shouyang Wanhua Furnace, and then the channels in these attack ports are interconnected, so that the needle-shaped lightning egg can pass through the channel smoothly and accurately launch from the attack port.

Jiang Feng suddenly realized, slapped his thigh fiercely, didn't he just think of the appearance of the umbrella, why do you have to stick to the form, if the umbrella is made into an iron umbrella, and the iron umbrella is densely covered with channels, wouldn't it be twice the result with half the effort!

New drawings were quickly drawn, but the question of how to enter the needle-shaped lightning egg followed.

If you design eighty-one channels at once, it is not impossible, but if you need to install the needle-type lightning egg one by one, it is basically equivalent to this short-range attacker is a one-time attack weapon, because it will take a long time to install eighty-one needle-type lightning eggs at the same time.

In the scene of fierce confrontation, the other party will not be so stupid to give you the time to install needle-type thunderbolt eggs. In particular, short-range attackers are only suitable for short-range attacks and close-range combat.

In fact, that's it, problems come one after another, the main reason is that Jiang Feng wants to make the short-range attack weapon almost perfect, and it takes patience and perseverance over there, a little bit of picking, a little bit of research.

Next, the drawings were scrapped, and the shape and structure of the short-range attacker were refreshed again and again. However, as time went on, a new short-range attacker gradually surfaced.

After nearly half of the night, living up to the hard work and persistence, Jiang Feng finally had the initial model. Of course, the short-range attacker has come out, but it can't be refined for the time being, because before the short-range attacker, a standard needle-shaped thunderbolt egg needs to be designed.

On the basis of the needle-type lightning egg, the channel of the short-range attacker can be designed, and the short-range attacker is tailored for the needle-type lightning egg, which meets the requirements.

At this time, this short-range attack weapon is half completed, and it is equivalent to the short-range attack weapon itself, and the needle-type thunder egg does not seem to be too difficult to do, mainly because Jiang Feng has a magic weapon-level treasure Shouyang Wanhua Furnace, and has the origin body of the Fire Flame Divine Monarch as a weapon spirit, and it itself has primary wisdom, which is far stronger than ordinary refining magic weapons.

One of Jiang Feng's requirements is to really make the needle-shaped thunderbolt egg into a needle-shaped, with a small structure, to reduce the resistance in the air to a greater extent, and when it is ejected, it will not give the other party a chance to dodge at all.

In addition, when the needle-shaped lightning egg hits the target, it is best to penetrate the needle tip and then cause an explosion, and if the lightning egg explodes when it touches the target, the effect will be greatly reduced.

Therefore, the position of the Hidden Thunderbolt Egg is very important, not at the very front of the needle-type Thunderbolt Egg, but also not at the back of the Needle-type Thunderbolt Egg.

Later, after repeated scrutiny, Jiang Feng determined the lightning egg to be one inch behind the tip of the needle-type thunderbolt egg, which is the best position for the needle-type thunderbolt egg to play its role.