Countless ancient runes were carved into the walls around the lava lake. These runes completely sealed off the lava lake below, making the place akin to a cauldron with a constantly rising heat. 

Zhou Yuan stood on the cliff, his face turning a little solemn as he felt the heat wash over him. The high temperature was already faintly tingling his skin, a small taste of how frighteningly hot it would be when he ventured deeper.

Chi Jing had helped inscribe the runes to create this unique training environment for Zhou Yuan because the environment was necessary to cultivate the Purgatory Great Flame Devil art.

Zhou Yuan patted the spatial bag at his waist....