671 Immortal Slaying Sword Formation

Upon discovering this black continent, Jiang Chen felt the Immortal Extinction Sword imprint that had been passed down to him from Demon Ancestor Luo Hou suddenly tremble within his body, resonating with it.

At the same time, the high-grade Innate Spiritual Treasure, Spirit Coffin Palace Lamp, that he had received from Master Randeng, also began to vibrate at this moment, resonating with the black continent as well.

"An artifact left by Demon Ancestor Luo Hou?"

The moment the Immortal Extinction Sword imprint trembled, Jiang Chen guessed the origin of the black continent. It was definitely related to the Demonic Way, perhaps a treasure left by Demon Ancestor Luo Hou.

However, the vibration of the Spirit Coffin Palace Lamp made Jiang Chen doubt himself. If it were a treasure left by Demon Ancestor Luo Hou, why would it resonate with the Spirit Coffin Palace Lamp?

It was illogical for the treasures of Mystic Sect and Demon Sect to resonate with each other!