This was precisely a wisp of Sky Blue Wood Vital Energy that Chen Fei had forcibly extracted from the core of the illusion before, then stripped away and sealed.
During Chen Fei's previous battle with He Qiusheng, it was by using this preemptively retained wisp of Sky Blue Wood Vital Energy as a medium that he had been able to capture the subtle fluctuations of He Qiusheng's true body with relative accuracy, even while deceived by the illusion and with his vision and divine sense obstructed.
However, this process of detection took no short amount of time and was neither precise nor stable enough. If He Qiusheng had been more vigilant, or possessed a more profound concealment ability, he could very likely have shifted position or launched a stronger offensive before Chen Fei fully locked onto him.
In many battles, victory and defeat were decided in an instant.
Especially under circumstances where the enemy lurked in darkness while he stood exposed, and the environment was extraordinarily unfavorable, the true bodies of Vengeful Demons were often hidden deep away. They excelled at illusions and escape arts, their true forms elusive and unpredictable.
If he could lock onto their position first, he could seize the initiative, strike when they were unprepared, and avoid falling into the predicament of passive defense and gradual exhaustion.
Within this Ancient Ruin, where danger lurked on every side, even the slightest advantage could determine life or death.
Chen Fei raised his eyes and looked toward the boundless darkness around him, the demonic qi so dense it could not be dispersed. This place lay on the shadowed side of the ruin. Demonic qi was the absolute ruler here, everywhere and able to slip through every crack.
With only this tiny wisp of Sky Blue Wood Vital Energy in