Seeing that the time was right, Lin Yi raised his hand and lightly tapped the underlings beside him several times. The faint vitality seeping from his fingertips silently put them to sleep, leaving them obediently sprawled in the corner of the Stone Cave to rest.
Only after finishing all this did he slip out of the Crimson Molten Cave under the cover of the cavern shadows, drifting like a wisp of smoke toward the depths of the nest.
Clang! Clang!
Deep within Black Mountain's nest, dull hammering rang out one after another. Each blow was so heavy it seemed capable of shaking the mountain apart, echoing endlessly through the Stone Caves. It had not stopped since Lin Yi infiltrated the place.
There was no alternation of sun and moon on this Dark Continent. The sky was forever shrouded in black mist, making even the passage of time difficult to discern.
The Nether Fiend Bull Vipers in the nest were like tireless beasts of burden. Some swung hammers around furnaces, while others carried ores back and forth along mountain paths. Even when molten sparks splashed over their bodies, they merely flicked their tails and continued working without a moment's pause.
Lin Yi estimated that once their battered unit had rested enough, they would likely join this unceasing army of laborers as well.
After sticking a Five-Star Talisman, the "Qi Concealment and Invisibility Talisman," onto himself, Lin Yi moved nimbly through the maze-like mountain nest.
The branching Stone Caves and spike-filled passageways posed no obstacle to him. Following the increasingly loud hammering, Lin Yi quickly reached the core of Black Mountain—the deepest part of the Fire Vein.
The temperature here was several times higher than at the outskirts, and even the air was faintly warped by the heat.
Rows of enormous furnaces