At this time, there was still half a month before the Tower of Time in the secret realm controlled by the demon clan could be used. Zhang Tie rushed there from the core of Shanxu. Even if Zhang Tie passed through the gods' war puppets, Taking into account time, it only takes two days at most, so Zhang Tie still has more than ten days to test whether his ideas are correct. "Just do it if you think of it." The sky of light in front of him was empty, and there was no one to disturb him. The excited Zhang Tie entered the Black Iron Castle without any hesitation and appeared in the hall of the palace tree of the Black Iron Castle. The girls of the Yin Yang Sect are now engaged in a great work with great enthusiasm - placing those people who were rescued by Zhang Tie into the Black Iron Castle outside the Holy Mountain, and A Gan and the others also went to help. , the palace tree suddenly became deserted, and Heller was the only one there. The spatial orbs and the Nine Heavens Divine Spring in the Sky Realm that Zhang Tie just brought in are all in the hall of the Palace Tree. The space orb is floating in the sky in the hall of the palace tree, and it looks very suitable for this place. The same is true for the Nine Heavens Divine Spring. In the hall of the huge palace tree, with the addition of the sacred spring and the sacred stone, it looks full of life. Up, as for the corpse fragments of those evil gods, they were all stored in the underground warehouse under the palace tree. "Welcome back, Lord Lord" Heller seemed to have guessed what Zhang Tie wanted to do. After giving Zhang Tie an elegant salute, he stood under the small tree platform and looked at Zhang Tie expectantly. iron. "Hahaha, Heller, I have to thank you this time" Zhang Tie laughed, and in a flash, he came under the small tree. "This is all what the Lord of the Castle thought of himself. I am just the Lord's steward, assisting the Lord of the Castle in controlling the Black Iron Castle. I don't know anything and I said nothing!" Heller spread his hands and said seriously. Said to Zhang Tie. "Heller, I find you are the cutest at times like this" "Uh" Heller was speechless. Zhang Tie rubbed his hands together, extremely excited, circling around the small tree, his head spinning rapidly, thinking about where to start. ¡ª¡ª Fertilize first and then water or water first and then fertilize? After circling the little tree twice, Zhang Tie calmed down a little and thought it would be better to test the little tree's reaction to the Nine Heavens Divine Spring first and take it step by step slowly. The current process is actually like growing flowers and trees. All flowers, plants and trees need to be watered. They are the most adaptable to water, so it is more prudent to try Jiutian Shenquan first, and as for those evil spirits Whether the corpse fragments can be used as fertilizer, whether they can be absorbed by the sapling, and whether it will be beneficial or harmful to the sapling after being absorbed by the sapling, are all unknown. They are still just conjectures in my head. After trying the sapling's reaction to the Nine Heavens Divine Spring, , it would be better to try fertilizing step by step. Thinking like this, Zhang Tie's mental strength moved and he just waved his hand. In the pool of Jiutian Divine Spring over there, a stream of water flew over like a fountain, turned into a water bridge in the air, and came to the root of the trunk of the small tree. Location, it poured down all at once. In his first attempt, Zhang Tie only watered the small tree with about 500 ml of Jiutian Divine Spring. This amount was only about the same as a bottle of water, and Zhang Tie thought it was not too much. There is something special about the soil under the small tree. It is not ordinary soil. Zhang Tie discovered a long time ago that the soil under the small tree looks very unusual. The soil is dark brown and seems to be the same as ordinary soil, but in fact But it is very strange. When you apply gentle force, the soil will be like ordinary soil and can be grasped by you. But if you have a strong hand and hold it tightly, the soil will become stronger than steel. Even harder. The Jiutian Divine Spring that was poured down blended into the soil under the small tree in the blink of an eye. Zhang Tie stood next to Xiaoshu, eyes wide open, and watched Xiaoshu's reaction seriously. A minute passed and Xiaoshu didn¡¯t respond. Two minutes passed, and there was still nothing unusual about the little tree. A full five minutes passed, and Xiaoshu still couldn¡¯t see any change. Is it that the Jiutian Divine Spring is of no use to the small tree, or is the Jiutian Divine Spring that I just watered too small? Just when Zhang Tie was muttering to himself, Zhang Tie suddenly found that a leaf of a small tree in front of him suddenly moved. Then, the leaves of the small tree around the leaf also moved, and then the entire branch. The leaves of a small tree began to move. The moving leaves rubbed against each other and began to make noises, just like the spring breeze blowing through the strings of wonderful wind chimes hanging in the window, tinkling, tinkling, bells. It emits an extremely sweet sound of nature, and for a moment, the entire palace tree is filled with the beautiful sounds of the leaves of the small trees. This is the little tree singing, singing happily, full of joy and joy. Not only that, in the singing of the little tree, a faint, rainbow-like brilliance appears on the trunk of the little tree and every leaf. On the tree, under the gaze of Zhang Tie's naked eyes, Zhang Tie saw new leaves of different shapes beginning to grow at the ends of the branches of the small tree. Zhang Tie was overjoyed. The Nine Heavens Divine Spring is really useful to the little tree. It seems to be of great use. The changes in the little tree lasted for nearly ten minutes. Just when the little tree's singing slowly became smaller and the rainbow-like brilliance slowly began to weaken, Zhang Tie waved to the Jiutian Divine Spring in the distance, and a stream of spring water, It flew directly over and landed at the root of the small tree. In just an instant, the cheerful song of the small tree sounded again, and the rainbow-like brilliance on the entire small tree appeared again. Under the watering of Jiutian Divine Spring, the small tree began to change, and new leaves and branches were produced. The leaves of the small tree became more and more, the branches became longer and longer, and the trunk of the small tree also continued to become thicker. , grew longer and taller, and the whole small tree began to slowly grow taller and bigger. After nearly half of the water from Jiutian Divine Spring was consumed, the soil and soil moisture under the small tree were already saturated, and Zhang Tie stopped watering. At this time, the brilliance emanating from the small tree stung Zhang Tie so much that he could not even open his eyes. The entire small tree was enveloped in a brilliant light. Zhang Tie was fascinated by the brilliant light and the growing small tree. The tree forced him to jump away from the small tree and come to the distance. The entire palace tree hall is filled with brilliant light, heavenly sounds, and various strange fragrances. The changes in the little tree lasted for a whole day. One day later, the brilliant brilliance shrouding the little tree disappeared, and a big tree with a height of more than ten meters and a cloud-like crown appeared in the hall of the palace tree. On the big tree, a golden fruit is particularly dazzling