Time passed bit by bit. By the count, Ye Lei had been in the Dark Forbidden Zone for exactly two days. During those two days, aside from the soul beast he had slain on the first day, he encountered no more formidable soul beasts. Instead, he concealed himself and continuously searched for the immortal herbs rumored to exist there.
Hard work paid off. After two days of effort, Ye Lei finally found the dark-attribute immortal herb he had long dreamed of. However, this immortal herb was not in the form of ordinary flowers or grass, but rather a thick black bamboo stalk over two meters long.
After consulting the system's records, Ye Lei learned that this black bamboo was called Black Light Purple Bamboo, a top-tier immortal herb rarely seen even once in a hundred years among dark-attribute immortal herbs.
Its leaves could temper the muscles and bones when consumed. Chewing and swallowing sections of the purple bamboo could strengthen the body, and some even claimed that boiling the chopped bamboo into soup was greatly nourishing.
Without hesitation, Ye Lei cut down the Black Light Purple Bamboo before him. He then gently tore off a small piece of bamboo skin from one section, plucked a small black bamboo leaf from its top, placed them both in his mouth, and began chewing.
A dense wave of dark-attribute energy immediately flowed down his throat into his stomach like water. A warm current then coursed through the meridians within his body.
Ye Lei only felt that after this dense dark energy entered his body, both of his Martial Souls began to change. The Blue Silver Emperor Martial Soul underwent the greatest change, because this was his first attempt at letting it come into contact with dark energy. Yet he felt no discomfort. Even