The records of spices in the Unnamed Incense Scripture were truly detailed, deserving to be called as vast as the sea, yet they were well-organized with clear main threads, leaving few regrets of omission. Very quickly, Yu Ci found the entry for Infant Tongue Incense.
The long section inside detailed Infant Tongue Incense's origins of production, properties, usage, taboos, and also included refining techniques. It was clear that this incense was quite high-end; all kinds of processing and usage methods were very complicated, and there were even matching mental cultivation methods, with many taboos as well.
After glancing at it for a few moments, Yu Ci's head felt a bit dizzy, and he only remembered some basic information from the front. He knew that this incense originated from the East China Sea, with a hot nature and sweet taste, and had two types of usage: solid and liquid... Wait, originated from the East China Sea?
Wasn't Half-Mountain Island right beside the East China Sea? Even though its location was somewhat further south, acquiring it there was somehow much better than traveling ten thousand miles to rush to the Northern Wasteland.
Yu Ci's interest was piqued. He carefully checked this entry and then discovered that Infant Tongue Incense turned out to be an associated incense, always symbioting with a highly toxic sea worm. The worm's secretions attracted some special substance in the deep sea to adhere to it, and as time passed, the sea worm was sealed within, transforming and staining each other to become an incense as bright red as blood.
After the incense formed, the remains of the sea worm instead became impurities, and because it carried poison itself, a moment of carelessness during decomposition could stimulate corpse poison and destroy the incense.
Therefore, the purification method given here