As the night wore on, we took turns keeping watch, wary of any signs of danger. The glow from the stones provided some comfort, but we knew that the zombies would not give up easily. We needed to remain vigilant.
As dawn approached, we gathered on the rooftop once again, the first rays of sunlight breaking through the darkness. The barrier created by the stones remained intact, casting a shimmering aura around the school.
"We need to find a way to make this barrier permanent," Mr. Alex said, his voice resolute. "We can't rely on the stones alone to keep us safe."
Kaori nodded in agreement. "We should search for any information about the stones' origins. There might be a clue about how to strengthen the barrier."
"We also need to fortify our defenses," Ellis added. "The zombies won't give up, and we need to be ready for their next attack."
With a plan in place, we set out once again, scouring the school for any information that might help us in our quest. We searched every corner, every room, leaving no stone unturned.
In the library, we found ancient manuscripts and scrolls detailing the legends of the stones. They spoke of a powerful sorcerer who had created the stones centuries ago to protect his kingdom from darkness. The sorcerer's magic had imbued the stones with the power to repel evil, but their true potential had yet to be fully realized.
Armed with this knowledge, we returned to the rooftop, determined to unlock the full power of the stones and strengthen the barrier around the school. We gathered around the stones once again, focusing our thoughts and energy on the task at hand.
As we concentrated, the stones began to glow brighter, pulsating with raw energy. We could feel the power coursing through us, empowering us with a sense of purpose and determination.
Suddenly, a brilliant light erupted from the stones, illuminating the entire rooftop. The barrier around the school expanded outward, growing stronger and more resilient with each passing moment.
"We did it!" Miu exclaimed, her eyes shining with excitement.
But our victory was short-lived. As the barrier reached its full strength, a deafening roar echoed through the air, shaking the very foundations of the school. We looked up to see a massive horde of zombies descending upon us, their eyes burning with hatred and hunger.
"They've found us," Mr. Alex said, his voice grim.
With the barrier in place, we knew that the zombies would not be able to breach the school easily. But we also knew that this was just the beginning of a long and brutal battle for survival.
As the zombies closed in, we stood our ground, ready to defend our home with everything we had. The fate of our school, our lives, and the entire world hung in the balance. But together, united by courage and determination, we were prepared to face whatever challenges lay ahead.