The five Doppelgangers instantly focused their fire, launching powerful spells at the Rune Creature's eyes.
The Rune Creature roared in pain, its body trembling violently.
Yet it did not collapse. Instead, it attacked even more frenziedly.
"Right there!" A flicker of excitement flashed through Chen Ze's eyes.
"Everyone, focus your power and attack its eyes!"
"Master, we've nearly exhausted our spiritual power."
"Keep rotating."
"Yes, Master."
Five streaks of radiant light flashed, and the positions of the five Doppelgangers were instantly replaced.
Chen Ze likewise swapped out one Doppelganger.
Fortunately, the Rune Creature was mindless. If it had possessed consciousness, it would probably have begun doubting its entire existence by now.
Though fresh Doppelgangers had been switched in, neither Chen Ze nor the Doppelgangers dared relax in the slightest.
Not only did they have to withstand the pressure within the passage, they also had to continue tangling with the Rune Creature. It was truly no easy task.
They had indeed found the Rune Creature's weakness, but it was only a weakness.
Attacking its eyes could injure it, but it could not kill it outright.
As the battle dragged on, Chen Ze and the others exhausted their spiritual power once more.
However, Chen Ze had no intention of giving up. When it came to a war of attrition, he had never feared anyone.
A moment later, another five lively and vigorous Doppelgangers took over the battle.
Chen Ze also replaced another Doppelganger, returning at full strength.
He fixed his gaze on the Rune Creature's eyes and continuously unleashed fierce attacks.
Under the relentless assault, the Rune Creature grew increasingly berserk. It kept ramming the passage, trying to shake off Chen Ze and his Doppelgangers.
But Chen Ze and the others did not retreat in the slightest, launching fierce attacks again and