Look at this story from _Gameknight998_

The whole room was destroyed. All the crafting tables were covered with ash, as was everything else. Everyone was packed tightly together in the corner of the crafting chamber. Most of the NPCs looked as if they were just barely alive. “What happened?” Gameknight asked.
“Griefers destroyed everything,” Crafter said.
“Nobody could stop them, not even Digger or Hunter or Stitcher, in fact we’re all lucky to be alive,” said one of the NPCs.
“We need to rebuild the village, I don’t think that we can do anything about the griefers, but I’m sorry all of this happened,” Gameknight said, looking towards the iron doors at the end of the chamber.
Gameknight started out the door, slowly followed by the NPCs. And so they started cleaning everything up.