"Stellar Iron?" Tang Feng's expression changed to one of delight.

  Stellaluna iron is also a type of ore, but in terms of quality and preciousness, it is much more valuable than those ordinary hundred-refined iron ingots. Although it still can't be compared to Xuan Tie and Fei Jing ore, it's also a rare mineral.

  Because Xīng Chén Tiě itself emits a light like the twinkling of countless stars in the sky, it was named after this phenomenon.

  Tang Feng did not expect that in this room of Tian Xiu, there was actually a large piece of unused Star Iron ore, and he had no idea who found it first and then abandoned it here. This was indeed an unexpected windfall.

  As soon as Tang Feng showed this appearance, Si Niang and Tang Fei couldn't help but know what he was thinking.

  Uncle Xiao slapped himself: "Look at this mouth of mine!"

  The two of them had been working hard for two whole days, and it was only with great difficulty that they finally managed to forge all the metal ingots. They thought they were finally going to finish work, but then they discovered the Star Iron, and without a doubt, Feng Xiao definitely wanted to refine this Star Iron further.

  Xiao Shu was so annoyed to death, if he had known earlier, he would have just said it was an ordinary ore.

  Tang Feng smiled and said: "Fourth Sister, I'm troubling you again."

  Qin Si Niang coquettishly glared at him, then reached out and picked up the original ore the size of a face basin, weighing at least over a hundred catties, which felt as light as nothing in her hand.

  The white ore burst forth with a bright light, and the lump of raw material instantly melted in Siniang's hand, the liquid churning and splashing impurities onto the ground.

  This piece of stardust iron is only a raw ore and has not undergone any processing. It can be said that the vast majority of it is impurities, and only a very small part can be used.

  It can be seen that the fourth daughter had a harder time melting this star iron than smelting ordinary iron and steel ingots, because when she was smelting those metal ingots, only a little light burst out of her hands, which was enough to melt them thoroughly. However, now her white aura surged out for a foot high, the melting speed of the star iron was still somewhat slow.

  Gradually, more and more impurities appeared on the ground, and the Star Iron in Fourth Sister's hand became smaller and smaller.

  It took half a stick of incense to clear out all the impurities, and Fourth Young Mistress gathered up the White Essence Heavenly Energy. The originally face-basin-sized Star Iron ore in her hand was now only the size of a palm, a round ball.

  Although it's only this much, it's the essence of the whole ore, and after being compressed by Si Niang, the impurities have been almost completely removed.

  Fourth daughter put it in water to cool down, and when she scooped it out again, Fourth daughter couldn't help but be dazed: "This is really beautiful!"

  This piece of Star Iron is like a miniature sky at this moment, under the vast expanse of the universe, billions of stars are twinkling endlessly, among which there is a slightly larger one that is particularly bright, presenting a semicircular shape, just like the moon surrounded by countless stars. Although the room is pitch black, this piece of Star Iron emits a hazy glow.

  "Feng Shao, what do you want to forge this into?" Tang Fei asked with a smile, "This thing is too small, if we were to forge it into a sword, the material might not be enough. How about forging it into a dagger instead?"

  Tang Feng shook his head and with a flick of his wrist, the broken star appeared in his palm: "I already have the heavenly soldier dagger, what do I need another dagger for?"

  "You're not thinking of refining a hidden weapon again, are you? It's such a waste to use good materials like this for a hidden weapon." Laughing Uncle sighed at the Xīng Chén Tiě and looked around Tang Fēng's body, trying to see where he had hidden the Tiān Bīng Dāo.

  "Of course it's a hidden weapon." Tang Feng chuckled and said, "It may seem like a waste to you, but in my opinion, it's the ultimate utilization."

  Tang Feng quickly ran over and lit the candles in the room, then drew a pattern on the ground with Huo Ri.

  This set of patterns consists of four parts. Tang Feng painted with meticulous care, his movements gentle and delicate, and the painting was also quite exquisite.

  Si Nang and Tang Feixiao leaned their heads together, the more they looked, the more confused they became, because these four patterns did not look like any hidden weapons.

  "What is this hidden weapon?" Laughter Uncle asked in puzzlement.

  Tang Feng smiled but didn't speak. The patterns he had given to Fourth Young Mistress earlier were not hiding any secrets and belonged to the most ordinary mechanisms for hidden weapons, so even if someone found out about them, it wouldn't be a big deal.

  But this was one of Tang Feng's secrets that he didn't want to expose, even if Xiao Shu and Si Niang were trustworthy people. This wasn't because Tang Feng was being overly cautious or didn't consider them his own people, but rather some things were better left known only to himself.

  Turn the heart wheel! This is a hidden weapon designed by Tang Feng himself, with internal mechanisms. The four components can be combined and disassembled. After combination, it forms a circular shape like a wheel, with built-in flying needles. When the turning heart wheel encounters resistance, such as attacking an enemy, its speed suddenly increases, cutting the enemy, while at the same time triggering the built-in flying needles to shoot and kill the enemy at close range.

  Moreover, if a thin, yet extremely durable thread is attached to the spinning wheel, it can be retrieved and its direction of attack controlled with one's fingers after it has been thrown.

  Even with Tang Fei's and Si Nang's eyesight, although they could see that the four components could be combined, they couldn't see the subtlety inside.

  "Fourth daughter, use this Star Iron to forge two sets of these things for me. Also, help me cut out a piece from the Star Iron and forge two iron wires that are five zhang long." Tang Feng pointed at the pattern on the ground: "The size of the forged items must not have even the slightest error compared to what I drew."

  Because it needs to be combined, once there is a slight mistake, it cannot be combined.

  Fourth daughter nodded seriously and carefully examined the four patterns for a while before starting to work.

  These two days, Si Niang has also accumulated some experience. It can be said that when she was refining the things needed for Tang Feng, she was also tempering her own control over the seal of air.

  The flames rose as the scabbard was drawn, and Fourth Sister cut a whole chunk of Star Iron into ten pieces in an instant.

  Two of them are used for refining silk threads, which is very simple and easy. The remaining eight are used for refining the Turning Heart Wheel.

  Things developed beyond Tang Feng's expectations, as the hidden weapon was divided into four parts, so each part wasn't very complicated, and Fourth Daughter easily refined them, with the only thing to pay attention to being controlling their size.

  After spending an hour, Fourth Daughter had already finished.

  Tang Fei smiled and said: "Is there anything we can help with as a couple now?"

  Tang Feng played with the rotating parts of the Tibetan Buddhist prayer wheel, smiling and saying: "That's all, you guys go back to accompany Mengmeng, tomorrow we'll head up to Qu Ting Mountain."

  "It's enough to kill me." Qin Si Niang said.