Zhang Yan looked at the burning jade-green Hellfire below.
He counted on his fingers and introduced them to Old Jiang.
Zhang Shiba, who was rushing up the hill again, had an excited look on his face as he prepared to be pampered.
Hearing his lord's rude words, he was shocked.
He was so shocked that he almost fell down the mountain again!
The flattering smile on his face instantly turned into a bitter gourd.
"My lord! You're a little too amazing! It took me two to three months of painstaking research to improve this alchemical fire oil formula. I originally wanted to give you a surprise.”
Zhang Shiba said in a daze.
"But why do you seem to know how to calculate and know everything…This is too depressing!”
Zhang Shiba was depressed. His intelligence was rare in the world.
She would always surprise him!
And it was the kind that gave him a sharp warning!
Just like this time.
The method of refining gasoline was originally proposed by Zhang Yan.
After Zhang Shiba developed gasoline!
He even exerted all his strength to improve the effect of the gasoline.
White phosphorous was added to increase its flammability.
Charcoal was added to increase the temperature of the flame.
Copper powder was added to increase stability.
In order to increase the lethality of the flames, he even added a lot of icing that was more precious than gold.
Once the flames touched it, they would immediately become like maggots in one's bones.
It was burning and corroding.
He would not stop until he burned a big hole in his armor and flesh.
……
It wasn't easy for him to get the ordinary alchemical fire oil that Zhang Yan had given him.
He had improved and upgraded it to its current state.
Who would have thought that his lord was not shocked at all.
He casually pointed out what was added to the gasoline!
It directly shattered his thoughts of showing off. Immediately, he had the urge to find a piece of tofu and kill himself.
"Alright, don't be depressed!"
Zhang Shiba looked like a frosted eggplant, dejected.
Zhang Yan, who had a terrible look on his face the whole night, curled his lips slightly.
He smiled and comforted her.
"It's not easy for you to improve gasoline to this extent in just two months!”
To be able to refine the gasoline that he had casually mentioned.
And in such a short period of time, he had improved it to its current state.
It could be used as an incendiary bomb with just a shell.
Zhang Shiba was not like Zhang Yan, who had studied chemistry seriously.
To be able to reach this point.
Zhang Shiba had purely relied on his own fumbling, figuring it out bit by bit.
One had to admit that Zhang Shiba was truly a genius!
"Wait…wait!"
Zhang Yan revealed a rare smile to comfort Zhang Shiba, who had suffered a blow.
Old Jiang stammered.
"Your Excellency, little lunatic…Let's not talk about the alchemical fire oil first. Zhang Shiba, didn't you say that you've only been in Chang 'an for ten days?”
Old Jiang pointed at the ditch in front of him while trembling.
"How did you do it? He dug such a big ditch without a sound…"
"It hasn't even been half a month and you've already dug such a long ditch? Uncle Jiang, do you really think I'm a god?”
Hearing Old Jiang's sigh, Zhang Shiba, who had a bitter expression, rolled his eyes.
"This is Longshou Plain! They were less than ten miles away from Chang 'an. A sneeze could summon the city patrol army!”
"If the commotion is a little bigger, they'll notice something strange! A moment of carelessness could ruin Daren's plans!”
"Therefore, when I received the secret order from Milord, I spent a lot of effort to think of this trick!”
"Method? What is it?"
He looked at Zhang Shiba's slightly smug expression.
Old Jiang asked without thinking.
This time, even Zhang Yan was interested.
After all, it was difficult to create such a huge gap in such a short period of time.
Not to mention, it would be even more difficult if he could not cause a big commotion.
"Hehe! "If it was before, even if you killed me, you might not be able to break out of this situation. However, it's different now!”
Zhang Shiba explained with a smile.
"Sir, you've developed something heaven-defying like explosives for us. With a little help from the heavens, won't there be no problem?”
Explosives?
God's help?
Hearing Zhang Shiba's words, Old Jiang only felt that his brain was even more inadequate.
However, Zhang Yan looked at the huge gap again, and a hint of realization flashed in his eyes.
He could roughly guess what Zhang Shiba was doing.
"Hehe! I can only say that my luck is pretty good!"
Zhang Shiba explained with a smile.
"Not long after I received the news and rushed out of the city to prepare, I discovered an underground river here! The current was not big, but it was very wide and long! It just so happens to be on the road that we must pass through when we retreat!”
" Therefore, I sent the experts in the Dragon Swimming Army who were proficient in water geomancy to cut off the undercurrent in two different directions, one upstream and one downstream!”
"After cutting off the water flow, the next thing will be much simpler. We will use the Thirsty Crow to draw out the water from the water vein and replace it with the improved alchemical fire oil!”
"Then, we'll follow the waterway and bury a suitable amount of gunpowder that's enough to turn the underground river into an open channel…Hehe, isn't that all?”
This book comes from：m.funovel.com。