Herobrine was the old Steve and he was the hero when he saved Minecraftia from the nether pigs (pigman?) tried to take over the planet. The other people on the server were amazed. But after the celebration, Herobrine took a boat in the ocean but crashed into a rock and drowned as he couldn't swim...
Then he respawned in the nether and the zombie pigman made him king of the nether...
When the pigs gave him obsidian for reentering Minecraftia, he noticed in the water that his pupils were gone and his eyes glowed brightly. He also saw a terrible sight: a new Steve took his place. Herobrine' s rage came to murder the new Steve. When Steve died, he reappeared and killed him. His old friends started calling him Herobrine, from his heroism as the saved planet, and drowned from brine (ocean water) . He is feared greatly and is now in his fortress thinking of plans to reenter the world killing Steve, and reclaiming the throne.
This was surprisingly good. My lil bro' s grammar isn't that great, but the overall story was kind of cool. If my little brother happened to copy this from anywhere, I swear, I had no idea. But I'd like to think the little booger is as capable of good storytelling as his big sis...well, maybe after some more practice.
I changed nothing from his original story other than capitalizing a few things, spacing the chunks of writing between his ellipses, and putting a few author's notes. Now I'm going to write a short summary down below that is hopefully a little easier to follow.
Herobrine was once a regular minecraftian player. When the zombie pigmen came to take over the server, he saved the day. After they celebrated their victory, Herobrine went off in a boat, either for the fun of it or to search for new land to mine and build on. His boat broke, and he drowned. (space bar dude, SPACE BAR!)
After that misadventure, our protagonist found himself in the nether and (for some reason) his old foes gave him the crown to the nether (shouldn't the other nether mobs have had a say in this too?). When he returned to the surface world, Herobrine was horrified to see that his (skin glitched out) appearance had changed! Not only that, but his friends had found a new hero to play with. (And the new guy stole his old skin and username too. What a jerk.)
Herobrine killed Steve for revenge. When he respawned, the new guy killed Herobrine in retaliation. (And so it begins...) Herobrine old friends rechristened him, and now everyone's favorite anti-villain sits in his Nether Fortress, planning his revenge.