Upon hearing this, both Du Fei and Yun Yuqing's faces dramatically changed, and the atmosphere seemed to freeze in an instant.

If this corpse was indeed the Elixir King, then...

Taking a slow breath, Du Fei whispered, "The fog illusion when entering was the first challenge; the Pill Slaves before the palace were the second; the pill corridor was the third; the seventh-grade Pill Slave was the fourth; the cliff was the fifth; the ancient forest was the sixth... But ...