Leon and the others managed to keep the monsters at bay for one hour, but eventually, the monsters managed to break the first line of defense. Leon and his skeletons kept attacking the monsters while retreating trying to save as many lives as possible, but even so, several soldiers got eaten and smashed like ants.

"Sasha, Betty! Cover Pedro and the civilians!" Leon shouted.

Sasha and Betty nodded, they were strong and fast, but they only could do so much to protect hundreds of civilians while fighting dozen of monsters.

Leon's skeletons weren't fast like the skeletons knights, so their numbers started to decrease at a fearsome pace. However, the ones who survived managed to leave a sea of fire for the monsters to deal with. It wasn't efficient like electric attacks, but fire also slowed the big ones down while killing the small fries.

"Shit… there is no end to this…"

Probably hundreds of thousands of monsters had fallen, but the end of the battle still couldn't be seen. Leon tried to cover the soldiers and civilians as much as he could, but that meant that he had to waste a lot of time looking around instead of killing the monsters in front of himself.

Leon tried to save and Heal as many as he could, but after seeing so many people dying in front of him, he understood that he had failed again. He didn't know if the job was impossible or not, but he had failed nonetheless again. Despite that, he kept fighting because it was the only thing he could do at the moment.

Several hours passed, and Leon lost the count of those who he had failed in protecting or covering. He already could see thousand of survivors behind him and the sea as well. There was nowhere to escape, he could escape if he wanted, but what would be the point? Flying to escape while seeing thousands of human beings butchered by monsters? Leon didn't want to do that; he didn't survive the island using brute strength to run in moments like these. He kept fighting until he felt that his head was about to explode due to the exhaustion.

The number of skeletons that were still working barely reached the ten thousand mark, but the damage they caused was scarcely noticeable. Even Betty and Sasha's faces were filled with despair, they didn't know the people who were dying, but they couldn't bring themselves to ignore such carnage. It was like reliving that day four years ago. They were ready to take Leon by force if it was necessary and flee… but then it happened.

"Look to your right!"

A voice echoed in Leon's mind; it was a weird yet familiar voice. Without asking why or who that voice belonged, Leon looked to his right side and saw a corpse of a T-Rex and nearby, he saw a tome.

"What the…"

Leon didn't have the time to look for spoils or drops; he was only interested and fighting to save as many as he could. However, he was in a dire situation where it was impossible to save those people. In the end, the only choice he had was to look for weapons and items near the corpses that could grant him the power to solve that situation. Leon ran toward the tome and picked it up.

Congratulations! You have learned the skill: Summon Zombie.

Cost: 100 mana

Cooldown time: 10 seconds.

Leon frowned, it didn't look like a powerful skill, but once he tried to use and failed, he noticed what that skill could do.

"A skill that turns dead monsters into zombies…"

The cooldown time and the cost were quite high, but that skill would give him what he needed, time. Leon used the skill on the T-Rex corpse, and the creature instantly got up and attacked the nearby monsters. It wasn't strong enough to stop another T-Rex, but that wasn't a problem since it was much stronger and resilient than Leon's skeletons.

Summoning them whenever possible, Leon created several other T-Rex zombies, and they caused quite a ruckus before the other monsters finally recognized them as enemies.

"Leon… did you do that?" Betty frowned.

"Yes… anyway, cover me." Leon said. "I need to recover my mana."

Betty and Sasha nodded, but even Sasha frowned when she saw the T-Rexes under Leon's control using the Fire Breath that could turn most monsters into ashes in a few seconds… that skill was way too convenient. After ten minutes, Leon had almost one hundred zombie T-Rexes under his control, and since they were under Leon's control, they were way more efficient and organized in killing monsters. The survivors who managed to stay alive until now finally had some room to breathe, and Pedro and the others resumed on the job of using the railgun instead of running for their lives.

It looked like the zombie T-Rexes could more or less suffer the amount of damage as the alive ones before running out of juice. However, considering the fact that Leon could kill one and make another zombie in a matter of seconds. His army only grew the more time passed.

After one hour, Leon had three hundred and sixty of those monsters under his control, and now the survivors didn't even have to fight. They only collected the spoils and treated the wounded. Ten hours after the start of the battle, it finally ended. Those who managed to survive celebrated the victory and the fact that they protected their hometown… to some extent.

Meanwhile, Leon, Betty, and Sasha couldn't but look at each with skeptical eyes. They survived and won by chance; they got very lucky that Leon learned such a convenient skill. However, Leon knew that it wasn't a coincidence.

"That voice… no, it can't be…"