Rise of the Otherworld.

After experiencing that terrifying incident of losing control of their spiritual power, everyone was still terrified and became even more cautious during their training. The originally lively atmosphere became solemn and serious, with a hint of vigilance and focus on everyone's face.

Lin Yu looked at everyone and said seriously: "Although we were safe this time, we must not act rashly again. In the way of cultivation, haste makes waste." His voice was steady and powerful, echoing in the valley, like a warning bell knocking in everyone's heart.

The disciples nodded, their expressions solemn. Their eyes were no longer filled with the previous impatience and impetuousness, replaced by determination and composure. "Master, we understand. We will definitely practice diligently," one disciple said. His voice was soft, but full of determination.

In the days that followed, they devoted themselves to practicing the techniques, constantly consolidating and improving their achievements. Even before the first rays of morning sun shone into the valley, everyone had already begun their day of practice. Some sat cross-legged on the ground, guiding spiritual energy to slowly flow through their meridians; others stood up and practiced spells, lights flashing and wind whistling.

Every day, Lin Yu personally guided his disciples in their practice, correcting their mistakes and sharing his insights. He patiently observed each disciple's progress, stopping from time to time to demonstrate movements and explain key points. "Spiritual energy should flow naturally, like flowing water. It cannot be forced, otherwise it will easily lead to obsession." Lin Yu said this while personally demonstrating the trajectory of spiritual energy, allowing his disciples to more intuitively understand.

During the process of cultivation, everyone constantly pushes their limits. Some disciples become more adept at controlling their spiritual energy, making it as effortless as a finger. Spells that once required considerable effort are now effortlessly unleashed with even greater power. Others experience a profound improvement in their mental state, becoming more composed in the face of difficulties and setbacks. No longer frustrated by temporary setbacks, they seek solutions to problems with a peaceful mindset.

Lin Yu himself also discovered some new insights during his practice. "It turns out this technique has such profound connotations," he muttered to himself. He immersed himself in the world of practice, constantly exploring the secrets of the technique. Every breakthrough brought him immense excitement and satisfaction.

As time went on, everyone's strength improved significantly. The once barren valley became vibrant due to their powerful spiritual energy fluctuations, and the flowers, plants and trees seemed to be nourished and grew more luxuriantly.

But they did not become complacent because they knew that there were more challenges waiting for them. They understood that the improvement of strength was only the beginning and the real test was still to come.

At this moment, a mysterious letter was delivered to Lin Yu. There was no mark on the envelope, but it exuded a faint strange fragrance. Lin Yu opened the letter and his face became solemn in an instant.

"Master, what happened?" Xiaoyaozi noticed something strange about Lin Yu and asked.

Lin Yu took a deep breath and said, "This letter says that a mysterious treasure appeared on the top of the distant Tianshan Mountain. It is said to have the power to destroy the world. All forces are ready to fight for it."

After hearing this, everyone fell into deep thought.

"Master, should we go?" asked a disciple.

Lin Yu pondered for a moment and said, "This may be an opportunity, but it is also full of dangers. We must be fully prepared."

Can they stand out in this battle for treasure? What difficulties and obstacles will they encounter?