Then, at one glance, Tie Dan realized that the swords forged by the Hidden Sword Manor were not made from any mortal iron; instead, they were forged using techniques for crafting Magic Swords.
This process is the Sword Sect's exclusive secret — treating the sword as a magic treasure, refining it from sword embryo to sword infant and onwards. If there's any difference, it's probably that the time to forge and open the furnace is much shorter than that of normal flying swords.
According to the Sword Sect's traditional refining method, a furnace of swords wouldn't open for centuries. When the pot is opened, there's a grand spectacle of sword fighting and sheath selection, with blood sacrifices to the divine blade, as each sword brought forth is a calamity.
