The crisis hasn't occurred, but the fighters in the hall feel incredibly tense, the crisis isn't yet resolved, and there are still large numbers of Immortal Zombies en route.

The second wave of Immortal Zombies is also approaching at this time, slowly engulfing every inch of the footage on the camera, with the close-up shots clearly capturing the hollow eyes and ferocious faces of the Immortal Zombies, as if they could break through the screen at any moment and pounce on everyone inside the fortress.

Deep, intermittent growls echo in the hall.

In the silent environment, one can even hear the dull thud of heartbeats from different chests.

"Keep hold of your weapons, don't fire them early out of tension."

The white-haired figure, as the leader, solemnly reminds everyone at this moment, his gaze also fixed on the big screen just like the warriors.

Blackie takes a deep breath at this moment, wipes away the sweat on his forehead, and turns to look at Xiao Jin next to him:

"Gold, do you think we can handle this round?"

"Nonsense, of course, we can. Haven't we faced the Wandering Corpse incidents before? We've always made it through safely, this time won't be an exception either."

The man called Gold said with determination, but his expression couldn't conceal his nervousness, and he subconsciously swallowed.

The third wave of Immortal Zombie tide approaches during the conversation.

The voices in the hall abruptly cease, the warriors tighten their grips on their weapons, their knuckles turning white from the force.

Just when they think the third wave of the zombie tide is about to end, a solitary Special Species, significantly taller than the other Immortal Zombies, appears on the screen.

Its skin exhibits a bizarre dark green hue, with faintly glowing bones visible under its decaying muscles, and sparse strands of hair stick to the rot on its head.

This Special Species Immortal Zombie, initially marching mechanically with the main troop, suddenly seems to sense something, stopping gradually, its form swaying with the push and shove of the zombies behind, yet it remains standing still.

Its cloudy eyeballs slowly rotate, and two yellowed fangs protrude from its gaping mouth corners.

Its nostrils flare rapidly, seemingly catching a scent in the air.

The already highly strung warriors in the hall feel their hearts leap to their throats upon witnessing this scene.

Even the white-haired leader's eyes flicker with a hint of panic.

The warriors grip their weapons even tighter, everyone holding their breath for fear that any noise might completely provoke the zombie.

Everyone understands that once the zombie confirms the presence of Life in the fortress, they will face an unprecedented crisis.

Even if the Immortal Zombie tide can't breach the fortress's blast-proof metal doors, a prolonged siege will gradually deplete their resources till death.

As time elapses, the peculiar-looking Immortal Zombie in the surveillance footage seems guided by some signal, slowly rotating its body in place.

Its movements, though rigid, carry an unsettling focus, with its cloudy eyes occasionally scanning towards the fortress.

Every inadvertent sweep feels like a Heavy Hammer brutally pounding on the warriors' hearts in the fortress hall.

Subsequently, it begins moving towards the fortress, each step accompanied by an awkward sway, leaving patches of grime on the ground with its decayed feet.

With each step, it keeps lifting its head, sniffing the air, its head occasionally twitching.

The Immortal Zombies draw ever closer, with the warriors' hearts pounding fiercely, as if about to burst from their chests.

Many young warriors' hands tremble slightly beyond control, recognizing that the warriors' emotions have been stretched to the limit, the leader at the forefront quietly speaks up:

"Don't panic, it's still not sure."

However, the leader who says this is also covered with beads of sweat on his forehead, his eyes betraying unavoidable grave concern.

The zombie arrives at the thorny barriers near the fortress, extends its emaciated, ulcerated arms to gropingly explore the obstacles, growling lowly.

The warriors inside the fortress stare at the surveillance images with utmost tension.

Click.

A warrior disengages the safety on his gun.

Click! Click! Click!

Other warriors also follow suit, turning off their safeties, with fingers resting on triggers and their gazes shifting from the surveillance images to the security passage ahead.

The atmosphere becomes extraordinarily heavy, everyone holds their breath.

At this moment, the zombie in the surveillance footage suddenly licks the bloodstains smeared on the railing, then turns around to follow the zombie tide further away.

"Danger averted." The leader's voice rings out, filled with reluctant relief.

At this moment, the warriors' taut nerves relax momentarily.

All the warriors feel as if they have gone through the gates of hell.

If this Special Species Immortal Zombie had launched an attack on the fortress doors, all the Immortal Zombies would have followed.

The specific reason is unclear to them, but analysis suggests that the virus within Immortal Zombies triggers the release of a special pheromone when they discover "food".

When an Immortal Zombie detects the presence of Life and is attracted, the specific pheromone it releases is instantly perceived by nearby zombies, communicating through a chemical signal that "there is food here," drawing them to congregate.

Yet, the brief alleviation of the crisis doesn't indicate safety, as the massive zombie tide behind continues to advance.

The fourth wave, the fifth wave... Every time a Special Species Immortal Zombie appears on screen, the atmosphere in the fortress hall becomes especially oppressive.

"Gold, do you know what I was thinking just now?"

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