'Off-canon'
Sam. He was the key. Optimus slammed his fist heavily into Megatron's steely face. Sparks erupted. Optimus continued his assault hammering his fist into the Decepticon's face, He did not hate Megatron. It hurt him to do this to the one he had once called friend. His human compatriots were nothing, though. They had no protector. He was a Prime. It was his duty to fight and die to protect them. Megatron was able to recover and in one split second drew his energon sword. Optimus felt it rip through his innards. He felt it force its way through. He knew what had happened. The darkness began to invade his sight. He cried out for the human to run. He needed to be safe. It was Optimus' duty. His spark was slipping away like oil in the hand. Megatron tore the weapon from Optimus' mid with a smile then thrust the sword in one final blow through Prime's chest. He felt it. Optimus felt it drive through him. Every centimetre. He felt it. All that he could see was the human. The one he had been entrusted to. He could only hope that Sam would be able to survive and get away. Apocalypse was falling. The Decepticon's were so close. In that brief moment, he seen a future without himself. No, there was hope. There was always a single, last hope. His spark slipped into oblivion.
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