Here is a possible summary:
The text is a story about three friends, Steve, Alex and Brian, who are transported to the world of Minecraft. They have different reactions to their new environment: Steve and Alex enjoy exploring and helping the villagers, while Brian grows resentful and wants to escape. He finds a command block that gives him godlike powers and uses it to torment the villagers and his friends. Steve and Alex form a clan of builders to stop him, but Brian kidnaps them and tries to force them to leave with him. Steve sacrifices himself to destroy the command block, trapping them all in the world. Brian becomes Herobrine, a vengeful and powerful enemy of Steve and Alex.
Here are the key facts extracted from the text:
1. Herobrine is a powerful and dark creature who wants to escape from the game world of Minecraft.
2. Steve, Alex and Brian are three friends who were transported to the game world without remembering their previous lives.
3. Steve and Alex befriended the villagers and founded the builder clan to help and protect them.
4. Brian discovered a command block that gave him the ability to manipulate the game world and trap the villagers in cages.
5. Steve and Alex tried to stop Brian from using the command block to escape, but ended up destroying it and trapping themselves and Brian in the game world forever.