"Assist me, and keep the heat under control!"
Inside the pavilion, Han Yunfeng sat cross-legged, his hands forming seals as flames licked the pill furnace in a lively dance.
"Fire Control Heart Art!"
Fang Yuan split his attention in two. While providing flawless assistance, he silently studied Han Yunfeng's alchemy techniques.
"Intermediate Brain Domain Development Potion. It's already approaching the level of a high-grade spirit pill, and its ingredients are extremely precious! King Worms are generals under the Zerg Queen, leaders of entire Zerg armies. Their brain cores are naturally exceptionally valuable!"
The Zerg were one of the great powers in the Starry Sky Biological Alliance, and humanity's mortal enemies.
Their society was highly centralized. The Zerg Queen reigned supreme, able to control all her subordinates with brain waves. She was also the progenitor of all Zerg, and even the hive she lived in was capable of interstellar travel.
Whenever they reached a planet rich in resources, they would deliberately ignite the flames of war, devour everything like locusts, then resume their wandering through the universe.
Most terrifying of all, the Zerg reproduced at an astonishing rate. The Queen could also strengthen their abilities at will to suit any situation. It was said that her intellect was in no way inferior to that of a Grand Arcane Master!
"The idea for Brain Domain Development Potions came from research into Zerg brain waves... An early-stage potion only requires the brain core of an elite Zerg. An intermediate-stage potion requires a King Worm brain core. As for the legendary high-grade Brain Domain Development Potion, its most important ingredient is the Queen Bee Brain Nucleus!"
A Queen was the supreme leader of an entire Zerg population. To obtain her brain core, one had to wipe out the entire Zerg army under her command.