There was a storm brewing outside, but Wu Yu wasn't aware of anything. 

Within the Heaven Devouring Evil Residence, it was almost completely silent as long as Luo Pin and him didn't make a sound. 

Wu Yu placed the medicinal furnace, immortal treasure furnace, and various materials and tools on the floor. At the same time, he opened up the two books on refining immortal medicines and spirit designs from the Mystical Dragon tribe on the floor. Driven by his thirst for knowledge, he enriched himself rapidly. 

What was the most imposing was that there was a total of 1,000 doppelgangers seated neatly around him. With their legs crossed, they had the same actions and progress as they crushed their Jindans and expanded their Violet Kingdoms. 

For the entire process, Wu Yu exhausted 18,000 Inner Sea Essence Pills for the doppelgangers to reach the Violet Kingdom of the Inner Sea Realm with strength close to the main body. 

Compared to his doppelgangers, Wu Yu had an advantage because of his physical body, Great Dao Mystiques, and Ground Demon Transformation Arts. 

The 1,000 Violet Kingdom of the Inner Sea doppelgangers were an imposing sight to witness. Wu Yu used to lead soldiers into war. He clearly knew the miraculous effects of attacking when he had 1,000 soldiers...