I recommend you two novels about divine tombs and immortal cultivation. The first book was The Heavens Begins From A Perfect World. It told the story of the protagonist cultivating the Sky-Devouring Demonic Technique and his adventures in different worlds. The second book was " Celestial Bane, the Demon Lord ". The main character, Xun Yi, inherited the secret technique of the " Ghost Dao " and became a peak expert of the Demon Dao. I hope you will like my recommendation.π