In the natural world, the more powerful the individuals were, the fewer their population would be. Soul leave was an extremely rare poison. Even knights could barely survive this poison. However, soul leave's duration of effect was limited. After being poisoned by it, one's awareness couldn't be completely isolated from his body forever.
Soul leave denoted that one's soul would leave his body out of control. After his soul returned to his body, he would feel like having a dream.
After soul leave completely lost its effect, Zhang Tie gradually opened his eyes.
He was in a room, which appeared being in a mountain cave covering 600 square meters. The mountain cave was artificially built as everything in the room was well carved. It was covered with huge granites in all directions. Besides, there was an eternal fluorite lamp on the roof, the dim light gave out which made the mountain cave hazy.