The Immortal Lord's face turned grim. After entering the Wanyan Family, he had heard from them that Wu Tianchi indeed left three Sword Marks in the Demon Hideout Cave.
However, neither the Corpse Ghost Dragon nor the members of the Wanyan Family were able to obtain these Sword Marks. Even when the Corpse Ghost Dragon was at the peak of its power, approaching the Sword Marks would still be shaken by the force above them. Moreover, the key issue was that the Corpse Ghost Dragon couldn't comprehend the Sword Marks, so the Wanyan Family only knew that Wu Tianchi left three Sword Marks but did not understand their purpose.
