A Shadow
In the lair of Orochimaru, two and half years after his last body transfer, he and his student Sasuke Uchiha were training, when they heard screaming.
"Hm." Orochimaru said, and walked outside to see the commotion.
He was staring at a large black silhouette of some monster with sharingan eyes.
Sasuke stepped out, and also stared in shock.
A smile formed under the eyes as the shadow stared at them.
"Well well well," Orochimaru said with a smile, "Seems we have an intruder in our-"
"SILENCE!" It roared, shaking the structure.
"You dare order me? I shall enjoy watching you die!" Orochimaru hissed.
From his mouth protruded his Kusanagi sword, which pierced the shadow, but it appeared to not even feel it.
"Hmph. Pitiful mortals."
"I will show you pitiful." He hissed and swung his head, slicing the shadow in half.
All that happened was that the shadow reconnected with itself, and gave another smile towards Orochimaru.
"I may have a use for you." It said.
"No one uses me." Orochimaru said angrily.
He looked down to see that the ground below him had became black as night, and was dragging him down.
"No!" He yelled, attempting to slice the shadows off, but the sword went through them.
"Nothing you do will save you now. As of today, you belong to me."
After Orochimaru was dragged into the darkness, the shadow turned to Sasuke and said "However, I have no use for you...die."
Small, goblin shaped shadows emerged from the base of the large one and ran towards Sasuke.
He unsheathed his chokutoo sword and began to cut them all down.
Only problem was, the ones he cut down, usually in half, rose back up, execpt there were two.
They kept on multiplying, even if he didn't cut them, they still multiplied: two became four,became eight, became sixteen.
Soon, he was overwhelmed, and the large shadow dragged him into the darkness as well.
In Konoha, Naruto and Sakura were going over their own plans of retrieving Sasuke when the sky turned black.
The same shadow appeared new the Hokage mountain, smiling down at everyone.
"Who the hell are you!" Naruto yelled at it.
"Naruto shut up!" Sakura hissed, "I don't think this is the right enemy to upset."
The shadow chuckled, "You have guts small mortal. I will be sure to squash it out of you literally."
"What's this all about?" Tsunade asked.
From the shadow emerged a severely injured Sasuke, who was thrown out of the shadow and into the crowd.
Naruto and Sakura caught him, amazed at their luck.
"Do not celebrate just yet insects." It said with a smile.
From underneath Tsunade and Jiraiya came the same darkness that grabbed Orochimaru.
"Pervy Sage!"
"Lady Tsunade!"
Everyone attempted to help get them out of the pull, but in the end it won.
"Hey what's the big idea!" Naruto yelled.
"In time, my hotheaded insect, you will know."
It disappeared after that.
Naruto and Sakura then turned their attention to the heavily injured and unconscious Sasuke.