Prologue
The shinobi wrote. He wrote as fast as was legible; this message had to reach the Kages. But they were after him; he could hear them. He had run faster than he had ever run before, but they were just as fast. He heard the beat of their feet, and he wrote faster. He knew that even though his mission was a failure, and his team dead, he had to at least warn the villages. They had to know, before they were all dead, just like he was.
He reflected on his mission: The Mizukage had sent his team out to investigate some strange happenings. Reports of people gone missing, rumors of strange creatures, and the story about the living ground. His team leader had thought they were adequately prepared. They were wrong. They had made it to the small town in the forest, where the rumors had come from, but it had been silent; no one to be found. The ground was exactly as they said it had been: purple, living ground that had stuck to their feet as they walked.
The monsters were coming closer; he had to hurry. His team had made it to the center of the town, but they had run into a large organic-looking building. The monsters had waited for them; and they didn't even notice until it was too late.
He heard the footsteps; he knew what they were being made by. They were the small ones, they looked like dogs, except no fur, claws, wing-like appendages, and an evil look to them. These were small but fast- it had become painfully apparent when they pounced on his team. His squad leader had fallen to the things, and had been torn to shreds in an instant.
The rest of his squad had run, but more of the damn things had appeared behind them. There were other monsters too; he heard their scuttling nearby. Another team member had made the mistake of stabbing one with a kunai as it popped out of the ground. He could still hear her screams as the thing's bulbous green body had exploded, showering her in green acid.
He quickly ran to a tree, and jumped to a high branch. He heard the heavier footfalls of the bigger ones. He and his last team member had run into a pair of them just before they made it out of the village. His friend had stabbed at the monster, but the thing's thick armor had stopped that instantly. He didn't even have time to scream as the vile creature spat acid from its mouth into his chest.
The shinobi finished the message; he prayed it would reach the village in time. Just as the bird left his hand though, he heard the cry of the monsters below him. He jumped just in time as the big one spat acid at him. As he sailed through the air he watched the branch he had been on moments earlier melted. He landed on the ground, and the things attacked him immediately. Two of the little dog-like ones leaped at him, claws outstretched. A well thrown kunai punctured one through the throat, and it hit the ground at his feet. He dodged the other, and threw another kunai, but missed. He heard a scuttling noise; a green one on the right! The monster scuttled towards him just as the big armored one did. At the last second he jumped upwards, and watched the two collide. The green one exploded, and showered the big one in its acid, but the damn thing didn't die. It was still coming after him!
"Fire-style! Exploding Flame Shot!"
The creature screamed and writhed as the flames engulfed it. The shinobi didn't smile though; he heard even more coming. The message was sent; he wasn't fast enough to escape. The least he could do is kill as many of the damned monstrosities as he could and avenge his fallen squad.
The shinobi panted heavily. How long had he been fighting? Hours? It felt like an eternity. He looked around at the piles of corpses of the slain monsters, but he knew it mattered little. He had seen the eggs. The living building full of the luminescent green eggs and the other abominations that looked slightly human that tended to them. The taller building that had even more eggs hanging from the mushroom top, and the cries from within it.
A noise, a rustle in the bushes to the left! He turned as another dog-like monster burst out of the bushes screaming at him with unrivaled savagery. He threw his last blade straight in between its eyes, and it hit the ground at his feet. Before the light from the creatures eyes had faded though, two objects whizzed right past his head. It had been a diversion! He dodged to the side as a volley of serrated spines smashed into the tree trunk right behind him. Serrated spines? That was new; he hadn't seen anything that spat things like that before. He heard a slithering noise in the foliage; that sound was new too. He started to make hand seals, to shoot a jutsu at this new monster, but before he finished a spine struck him in the left shoulder. A twinge, and a searing pain started creeping up his arm. The spines were poisonous too?! He wrenched the thing out of his shoulder, and finished the jutsu. He heard a scream from the new monster, but he still couldn't see it. He heard another one behind him, but before he could turn another spine struck him in the leg, and another in the back. He cried out, and slumped against a tree. He slid down the side, and found he couldn't get up. As his vision blurred, he saw the serpentine tail of the monstrosity slither in front of him.
The thing was tall- maybe 12 feet or so, with a separated jaw. He noticed vaguely that instead of hands, the ends of the abomination's arms ended in vicious blades, as it raised one for a killing blow. Yup, this one was definitely a new one.