**Chapter 4: The Shadowed Battle**

With the Heartstone glowing with new power and the Tower's Insight providing Kael with a deeper connection to the Tower of Ascension, he moved on to the third floor. The Tower revealed a new environment, a sunless realm filled with luminous crystals that bathed the surroundings in an eerie, otherworldly glow.

As Kael ventured deeper into the third floor, he encountered a different challenge. The environment was a maze of reflecting crystals that played tricks on his perception. The walls seemed to shift and twist, leading him in circles and creating endless illusions.

Kael's progress was slow and cautious. He relied on his Tower's Insight, which had grown more potent after the meditation under the radiant tree. Kael's past-life knowledge allowed him to see through the illusions and find a path forward.

It took days of trial and error, of deducing the subtle patterns in the crystal reflections. Kael's determination and experience grew with each step. He learned that, in this maze of deception, every shadow held a secret, and every illusion concealed a clue.

Finally, he reached a chamber at the heart of the third floor, where a shimmering crystal, known as the "Mirror of Revelation," was said to reveal hidden truths. The Guardian of the third floor stood before it.

"You have proven your discernment," the Guardian said, his voice echoing through the chamber. "Now, face the Mirror of Revelation."

Kael approached the crystal, gazing into its depths. The Mirror revealed visions of his past life, his friends who had betrayed him, and the circumstances that had brought him to this point. It was a painful and enlightening experience.

As the visions in the Mirror of Revelation subsided, Kael felt a newfound resolve and determination. The truth had been revealed, and it further fueled his quest for vengeance.

The Guardian nodded in approval and said, "You have passed the test of perception and revealed the hidden truths. The path to vengeance is not for the faint of heart. You may proceed to the next floor."

With the Mirror's revelations and a new skill, Kael moved forward.