For this, Tang Feng stayed up half the night and drew several drafts. Today he came to let Qin Si Niang refine according to the draft.

  This is not like yesterday, yesterday the Fourth Daughter refined was just a single body, can be said to be very simple. But today's thing, all are some intricate mechanisms, which contain many precise designs, equivalent to testing the Fourth Daughter's control over the White Qi.

  Although the fourth daughter's control over her own white aura had reached its peak, she was not too familiar with these mechanisms. After busy for a whole morning, she still couldn't successfully refine one.

  The lunch was sent by Bai Xiaolou. Si Niang ate a little and then went back to work.

  Tang Feng and Xiao Shu crouched on the ground, each holding a large bowl in their hands. The bowls were filled with snow-white fragrant rice, and on the ground was arranged a heap of delicious dishes, which they ate with relish.

  Xiao Shu took a glance at Qin Si Niang and said to Tang Feng, "Si Niang is getting a bit impatient now, I can feel it. Look at her face, she's clearly annoyed. I guarantee that if I go talk to her now, I'll definitely get scolded."

  Tang Feng nodded and picked up a pair of chopsticks to pick up a braised pork knuckle from the side, rolling his mouth and rolling the rice grains at the corner of his mouth into his mouth.

  "I said it's incredible, where did you get all these little things from? The more I look at them, the more I feel they're exquisite. The structure inside is already so condensed that it can't be reduced any further, it's the essence of the essence, and missing any part would be unacceptable." Laughing Uncle looked at Tang Feng with a puzzled expression.

  Tang Feng gave him a glance, then picked up a pigeon and started eating with his head down. He thought to himself that this was the result of several generations of improvement in the Tang family, although other families may have similar things, but whether it's killing power or agility, or simplicity, they can't compare to the Tang family. As the saying goes, outsiders watch the excitement, insiders watch the doorway, how can an outsider like you see the subtleties?

  Xiao Shu continued, "Feng Shao, tell Old Tang the truth. Have you been to Tian Gong Mountain Villa? And did you steal the Tian Gong diagram? Otherwise, with your age and experience, how could you have these treasures?"

  Tang Feng lowered his head to look at the dishes on the ground, smacked his lips, and then stretched out his chopsticks to pick up a perfectly intact crystal pork knuckle from Xiao Shu's bowl.

  Xiao Shu Qi said: "What are you picking from my bowl?" He lowered his head to take another look, but the plate was empty, and Tang Feng had eaten everything clean.

  "Ah!" Fourth Uncle was suddenly very depressed, and stretched out his chopsticks to grab the elbow meat back. Tang Feng stuck out his tongue and rolled it over the top, looking at him and saying: "Do you still want some?"

  Uncle smiled and said: "I'm full."

  "By the way, Laughing Uncle, what was that thing you mentioned earlier, the Work Chart?" Tang Feng asked tirelessly while munching on his spoils.

  Xiao Shu glared at him: "The resentment of stealing food is irreconcilable!"

  "You're being too petty, aren't you?" Tang Feng said with disdain.

  "Damn it all!" Fourth Mother suddenly shouted from inside, "Finally got one right!"

  As soon as they heard this, the two of them immediately put down their rice bowls and rushed inside.

  When the two rushed in front of Qin Si Niang, they saw that on her hand, there was a small box about the length of a palm and two inches wide. The top of the box had a hole, and on the side, there was an inconspicuous button. The whole box looked ordinary, plain and unremarkable, without any eye-catching features.

  But the three people present knew the structure inside.

  This hidden weapon doesn't have a special name, it's not even considered a notable entry in the Tangmen Hidden Weapon Catalogue, it's just an ordinary sleeve arrow. The box can hold two short arrows, and when triggered, they will shoot out with tremendous force. If the enemy is unprepared, they'll be at a huge disadvantage. Even if Ye Shenqiu is a top-tier expert, even if he won't get hurt, he'll still be startled.

  The scabbard itself is small and delicate, very suitable for hiding in the sleeve, so it's called a sleeve arrow.

  The clothes that Si Nang gave to Tang Feng, although they exposed his lower arms, the sleeve arrows could still be hidden in the upper arm of the garment, and the effect was the same.

  "Fourth daughter, you've worked hard." Tang Feng looked very satisfied. Only Fourth Daughter could use the White Essence Revolving Qi to make the sleeve arrow so flawless that it seemed to be forged from a single piece of iron without any patchwork.

  Tang Feng's paintings this time were almost the same, with only a few minor changes in some places. For someone as skilled as Qin Si Niang, if she had already mastered the first one, then the second and third ones would naturally be no problem.

  There is a pair of sleeve arrows, both left and right arms need to be hidden.

  Fourth daughter did not disappoint, the second sleeve arrow quiver only took half a time to finish, after that fourth daughter became more and more courageous, skilled and proficient, with one effort she made the back arrow, whip arrow, and row needle all come out.

  Back arrow, a device installed on the back, a hidden weapon. When in use, just lower your head to trigger the mechanism and shoot out four arrows at once.

  The wrist-throwing arrow was originally supposed to be installed on the elbow, but this time Tang Feng installed it at his waist. When his body rotated, the arrow could be thrown out freely, and when combined with Tang Feng's hidden weapons, its power would only increase.

  Toe pick, also known as a shoe needle, is a small mechanism placed at the toe tip, specifically used for kicking and striking an opponent's vital parts.

  These small things don't require too much advanced smelting skills and can be made in a very short time. However, these small things are the protective charms that Tang Feng uses to save his life. If used well, it's absolutely no problem to delay for a while.

  Tang Feng also had Si Niang refine several dozen small, exquisite arrows specifically for sleeve arrows and throwing arrows, only then was the task complete.

  Turning back to look at the house, the metal ingots that were originally placed inside the house had all been consumed, leaving only some unrefined ore behind.

  Tang Feng looked around inside and his eyes were quickly drawn to one of the rocks that was roughly the size of a washbasin.

  He had seen the ore yesterday when he was moving metal ingots, although he thought it was strange, but didn't pay much attention to it. However, now that the sky is getting darker, in the dark room, this piece of ore seems to be emitting a faint glow.

  Tang Feng initially thought he was seeing things, but after taking a closer look, he found that there was indeed a faint light, although it was very weak, it didn't escape Tang Feng's eyes.

  After some thought, Tang Feng still walked towards that piece of ore and reached out to test its weight, only to find it was much heavier than he had imagined.

  "Fourth daughter, come and take a look at what this is?" Tang Feng hastily called out.

  Fourth Daughter rushed over upon hearing the sound, took a closer look, and then reached out to touch it. Suddenly, she exclaimed: "This piece of ore seems very cold."

  Reminded by her, Tang Feng tried the temperature of the ore beside him, and indeed, as Si Nang said, this piece of ore was much cooler.

  "Do you know what kind of ore this is?" Tang Feng asked.

  The fourth daughter shook her head: "I don't understand these things."

  The uncle squatted down and said: "Let me take a look."

  He picked a small piece of ore from the rock, and Uncle Xiao looked at it seriously, suddenly exclaiming: "This thing is actually Star Iron!"