Two months passed in a flash.
During this time, Lu Tianzi and Nanlan Qianxue chose to remain in Crimson Mountain without letting anyone else know of their whereabouts.
By now, Lu Tianzi was already able to maintain the invisible filter over his inner world even without having to close his eyes in full concentration. This meant that the refinement of impurities in his inner world was now a continuously occurring process, never stopping for a single moment even while he was doing other things.
While this did not accelerate the rate at which the impurities were being refined, it at least freed up his time to practise the Eternal Wraith Sword. At times, he even practised the Shifting Blossoms Sword Art along with Nanlan Qianxue.
Xihuang Yuanfeng did not shy away from outrightly expressing his disapproval everytime Lu Tianzi practised the Shifting Blossoms Sword Art. But Lu Tianzi slowly grew used to it, and simply ignored him after the first few times.