The cave heaven churned with rolling fairy qi, like thunder shaking the heavens. The Great Dao tree seemed to have received an immense nourishment and grew at a speed visible to the naked eye.,But unexpectedly, the resources needed to break through from the fourth stage of Great Power to the fifth stage were more than double that required for the third stage. Even a fourth-rank divine pill could only barely raise one's cultivation to the peak of the fourth stage of Great Power.,Shen Changqing calmed his mind and took out the Nether Spirit Stone, continuing his cultivation.。