The service entrance to the library led through a maze of basement corridors. Emergency lighting cast everything in hellish red as we moved toward the main stairwell.
I could feel them above us. Enhanced zombies, dozens of them, coordinating an assault on the third floor where Professor Chen's group was trapped.
"Multiple contacts," Aurora whispered, her sword materializing as we climbed. "At least twenty on the main floor."
Through my enhanced perception, I could see their positions. Three distinct variant types working together with military precision.
Stonehides forming a protective barrier while Spitters dissolved barricades. But there was a third type I hadn't seen before—something that moved with unnatural flexibility.
"Enhanced muscle and joint structure," Dr. Mills identified, studying my description. "They'll be fast, unpredictable."
We reached the main floor. The library's central atrium stretched three stories up, with balconies overlooking the ground level. Enhanced zombies filled the space, all focused on the stairwells leading to Chen's position.
"They're not just attacking," I realized. "They're preventing escape."
The coordination was terrifying. Stonehides blocked exits while Spitters systematically dissolved the building's structure. The flexible variants darted between levels, testing defenses with probe attacks.
"Coordinated siege warfare," Dr. Mills observed grimly. "They're learning military tactics."
A scream echoed from the third floor. Human. Desperate.
"We're out of time," Aurora said.
I closed my eyes, reaching for my power. The quill blazed as reality fractured around me.
Twenty-three enhanced zombies. Too many for conventional combat.
But I wasn't thinking conventionally anymore.
Instead of targeting the creatures directly, I focused on the library itself. The building's structure, the forces holding it together.
"Everyone grab onto something," I warned.
I rewrote the gravitational field in the atrium. Not increasing or decreasing—rotating it ninety degrees.
Suddenly, the wall became the floor.
Enhanced zombies tumbled through space as orientation shifted. Stonehides crashed into what had been the ceiling. Spitters fell in confused heaps. Even the agile flexible variants couldn't adapt quickly enough to navigate three-dimensional gravitational chaos.
"Now!" Aurora launched herself through the transformed space, using her lunar aura to create handholds on the rotating surfaces.
We fought our way up the twisted geometry toward the third floor. Aurora's sword carved through disoriented zombies while I maintained the gravitational anomaly.
But the enhanced variants were adapting faster than I'd hoped. The flexible ones learned to use their modified joints to navigate the rotation. Stonehides began punching handholds into walls-turned-floors.
"Can't hold this much longer," I gasped, feeling the massive energy drain.
We reached what had been the third floor. Now it was a vertical surface where Professor Chen's group clung to overturned furniture.
"This way!" I called, creating a localized gravity field to let them walk on the transformed surface.
Professor Chen was exactly what I'd expected—Asian-American, probably mid-fifties, with the precise movements of someone used to handling delicate equipment. He had two grad students with him, both looking terrified but determined.
"You're the enhanced individuals?" Chen asked as we began our escape.
"Yes. We need to move. Now."
I let the gravitational rotation snap back to normal. The enhanced zombies fell again, buying us precious seconds to retreat.
But as we reached the service stairs, that deep howl echoed through the building again. Closer now. Much closer.
The enhanced zombies stopped their chaotic scrambling. All of them, simultaneously, turned toward the sound with coordinated precision.
"Something's calling them," Chen said, horror dawning in his voice. "They're responding to a central command."
Through the library windows, I could see movement outside. Not just enhanced zombies—something much larger approaching through the campus quad.
We ran.
The basement corridors felt like escape for about thirty seconds. Then the building shook.
Not an earthquake. Not an explosion. Something massive had struck the library's exterior wall.
"What the hell was that?" Aurora breathed.
Another impact. This time, chunks of concrete rained from the ceiling.
We reached the service exit just as the third impact brought down a section of the building behind us.
In the quad outside, under the light of a full moon that seemed larger than it should be, we got our first clear look at what was hunting us.
The massive creature stood fifteen feet tall. It had once been human, but whatever process created the enhanced variants had been taken to its absolute extreme.
Its body was a fusion of all the variant types we'd encountered. Armored hide like the Stonehides, but flexible. Acidic glands like the Spitters, but controlled. The elongated limbs of the flexible variants, but proportioned for its massive frame.
But it was the intelligence in its eyes that terrified me most. This wasn't adaptation or evolution.
This was design.
"Area controller," Chen whispered, studying the creature with academic fascination despite our mortal terror. "It's not just commanding them—it's coordinating an entire territorial defense system."
The massive thing's head turned toward us with predatory focus. It opened its mouth and let out that commanding howl again.
Enhanced zombies began emerging from every building around the quad. Dozens of them, responding to their master's call.
"We can't fight that," Dr. Mills said with professional assessment. "Not yet."
Aurora's lunar aura flared brighter than I'd ever seen it. "Maybe I can—"
"No." I grabbed her arm. "We retreat. Learn. Get stronger."
The creature took a step toward us, and the ground cracked under its weight.
"Basement tunnels," Marcus said, pulling up building schematics on his tablet. "The utility corridors connect to other buildings."
We ran again, but this time with purpose. The creature's howl echoed behind us, coordinating its forces for pursuit.
In the tunnels, as we caught our breath, Professor Chen finally introduced himself properly.
"Dr. James Chen, Biochemistry," he said, extending a trembling hand. "And I think I know what that thing is."
"Explain," I said, taking charge naturally as the group looked to me for direction.
"The enhanced variants aren't random mutations. They're purposeful adaptations. But that massive creature—that's something else entirely."
He pulled out a tablet, showing research data he'd somehow preserved.
"I've been studying the lunar energy patterns since this started. The basic zombies show chaotic signatures. The enhanced variants show organization. But that thing—" He gestured upward. "That thing shows design. Intentional engineering."
"Meaning what?" Aurora asked.
"Meaning something is deliberately creating improved zombies. Using the basic ones as test subjects, then upgrading the successful adaptations."
The implications hit me like a physical blow. "We're not just fighting random monsters. We're fighting a development program."
"And that massive creature isn't just a guard," Dr. Mills added. "It's preventing us from leaving so we can be studied. Catalogued."
Another howl echoed through the tunnels. Closer now.
"It's tracking us," Lisa observed.
I closed my eyes, extending my enhanced perception through the tunnel system. I could see the creature's massive form moving through the basement levels of adjacent buildings.
But there was something else. A pattern in the lunar energy around us.
"It's not just tracking," I said. "It's learning our abilities. Every time we use our powers, it gathers data."
Aurora's aura dimmed as she understood. "We've been feeding it information."
"Then we need to get stronger faster than it can adapt," I decided. "Chen, your grad students—do they have classes?"
"Yes. Sarah's a Lunar Analyst, Kevin's a Gravitational Theorist."
I looked around at our expanded group. Seven people now, all with enhanced abilities.
But facing an enemy that learned from every encounter.
"We need a base of operations," I said. "Somewhere defensible where we can plan properly."
"My grandmother's house," Aurora said immediately. "In Queens. Fortified, supplied, and away from this thing's territory."
Another howl, much closer. The creature was learning the tunnel system.
"Agreed," Dr. Mills said. "But first we need to escape its area of control."
I studied Chen's research on his tablet, an idea forming.
"The lunar energy patterns," I said. "If that thing is designed, not evolved, then it might have limitations. Boundaries it can't cross."
"Like what?" Marcus asked.
I was already reaching for my quill, studying the complex energy signatures around us.
"We'll find out."
But as we prepared to move deeper into the tunnels, Sarah—Chen's grad student—suddenly grabbed his arm.
"Professor," she whispered, staring at her own tablet. "Look at this."
On her screen was a lunar energy reading. But not from around us.
From the city. Massive spikes appearing at regular intervals across Manhattan.
"There are more of them," she said, voice barely audible. "Massive creatures like this one. All over the city."
Aurora and I locked eyes, both realizing the same terrible truth.
We weren't just trapped on one campus.
We were trapped in a city full of these things.