A-Liu's body was rapidly expanding. Lin Ruo scanned it with his mental energy and found that A-Liu's energy was somewhat unstable, and some of it had even begun to leak out.

After all, absorbing the essence energy of two level 6 mutated plants was still too much for A-Liu. If it were in a safe place, A-Liu might have already started to digest it in its original form, but it felt that it was not safe now and that it was not the right time, so it kept forcing itself to restrain itself.

Lin Ruo noticed this and naturally wouldn't let A Liu restrain itself like this forever. She directly put it into her space. The moment A Liu was put into the space, it could no longer hold on and quickly turned into its original form. The willow branches swayed wildly. She observed it with her spiritual power for a while, and after confirming that A Liu was okay, she withdrew from the space and let it absorb energy properly in the space.

As for the restless plants around her, she smiled. After upgrading A-Liu and Lao Bai last time, there were not many wood-type crystal cores left in the space. She was worried that now that these wood-type ability users were so precious to the base, where would she find crystal cores for A-Liu and the others to use for their next upgrade? But she didn't expect the surprise to come so quickly, and that heaven had sent her so many good things.

The essence within these level 6 mutated plants far surpasses the energy within those wood-type crystal cores, and since she is currently in a treasure trove, she naturally cannot let it slip by.

She narrowed her eyes slightly, her mental energy wrapping around the roots of the mutated plants like hooks. Once entangled, they were like maggots clinging to bones, impossible to break free from.

The moment Lin Ruo's mental energy enveloped them, all the mutated plants were covered by a layer of water film. Lin Ruo activated his level 8 water-based ability at full power, and the level 6 mutated plants instantly turned into clumps of dark green essence. Lin Ruo also collected the drained original bodies into his spatial storage.

These huge, dried-out branches can still be used as fuel; they shouldn't be wasted.

While using her water-based abilities to extract the mutated plants, Lin Ruo also manipulated her spatial domain to continue moving forward. Using her mental energy and abilities simultaneously, her own abilities were naturally being depleted very quickly. Fortunately, Lin Ruo had a large reserve of abilities, and so far she had only used up about 40%, which was more than enough.

He extracted the essence of fifty or sixty mutated plants from Ah Liu and Lao Bai and put it into his space, intending to let them absorb it after returning home. This energy would be enough for them to upgrade to the next level.

At this moment, Lin Ruo also noticed that the further they went into the center of Hengshan, the fewer mutated creatures there were, and the stronger these mutated creatures became, along with an even stronger wind-elemental energy.

Lin Ruo extended her mental energy forward, avoiding the creatures, and walked for more than ten kilometers. When she saw what was in front of her, she couldn't help but exclaim in amazement, "It's really beautiful."

This is a giant tree that is entirely green. Before the apocalypse, this giant tree may have been a maple tree. Its textured trunk, broad leaves, and overall green color create a unique charm.

The soil around this giant tree has been completely squeezed to one side by the wind around it, forming a very large space. This space is completely filled with gale-force winds, and the wind element is extremely concentrated.

If this thing were given to a wind-type ability user, it would be an absolute treasure. Unfortunately, Lin Ruo wasn't that selfless; she naturally wouldn't tell anyone that she had such a treasure.

Lin Ruo's spiritual power traveled upwards along the trunk of the giant tree and discovered that the giant tree was actually taller than A Liu and Lao Bai, and was already a level 7 mutated tree!

Moreover, unlike other mutated plants, this mutated tree's core is filled with rich wind element energy.

Lin Ruo's initial joy instantly vanished, and she couldn't help but sigh slightly. She couldn't use the wind-elemental energy crystal core! The only thing she could use about this giant tree was its essence.

Just as Lin Ruo was still feeling regretful, a gale attacked her from all directions. The wind carried wind blades that seemed to cut everything around her to pieces as they swept through the air.

The surrounding soil, which had been compressed together, was also torn apart by the gale and carried forward by the wind, like a giant tsunami in the soil, with the force that was determined to engulf Lin Ruo.

Lin Ruo licked her lips. This attack was quite interesting. A white light immediately rose from her body, and her spatial domain instantly expanded. The gales that swept towards her were immediately dispersed by the spatial energy when they entered the spatial domain, and the soil that was swept up fell to the ground.

The attack, which had been carrying an astonishing momentum, was swiftly neutralized without even touching the hem of Lin Ruo's clothes.

Lin Ruo instantly teleported to the side of the giant tree. The distance of more than ten kilometers was nothing more than a distance that Lin Ruo could instantly teleport by folding space.

Before the giant tree could react to why this human had suddenly appeared beside it, Lin Ruo's spatial energy had already completely enveloped the giant tree.

The branches of the giant tree froze, the spatial energy completely imprisoning its trunk, and even the dense wind energy around it, which seemed to be able to sever everything, disappeared.

The tree was somewhat panicked. Ever since it awakened its consciousness, it had always been the most powerful being underground. It had never encountered such a strange situation before. Its body could not move, and it could not control the energy in the crystal core. What was going on?

Lin Ruo had no time to care about what the tree was thinking. She manipulated spatial energy to completely imprison the giant tree so that she could get closer and observe it.

Now, she can get the crystal core of this giant tree anytime she wants.

But she didn't make a move. She just circled the giant tree, her mental energy still exploring around it, trying to find out the reason why the tree's energy could mutate again. What could make those attributeless energies transform into wind energy?

She searched around the giant tree for a long time but couldn't find the reason. In the end, she decided to take the giant tree back to study it. With a thought, the crystal core in the main root of the giant tree was sent to Lin Ruo's hands and sent into the still space along with the giant tree.

The original intention was to investigate the reasons behind this, which would have been best done when the giant tree was alive, especially now that these mutated plants and animals have consciousness, so perhaps we could find out something.

However, this giant tree was of too high a level, and she was not at ease leaving it in her bio-space. In order to avoid any problems, she decided to kill it first and then take it away. Anyway, she was only somewhat interested in it, and whether she could research it or not would not affect her.

After dealing with the giant tree, the huge space began to collapse, and Lin Ruo no longer sensed anything powerful around him.

She glanced once more at the dark soil below before manipulating her spatial domain to teleport away. She had been underground for too long and had expended a lot of her energy; it was time to return to the surface.