knocker

You went into the mine without asking, looking around frequently, trying to figure out if the knocker (that's what you call him) was watching you, unaware that he was standing behind a tree, watching with his creepy smile. Arriving at the mine and placing a torch between the rocks, you begin to mine resources with a pickaxe: cobblestone, coal, diamonds, iron, etc. Suddenly, you hear the wheezing of a zombie approaching you. Before you can turn around, you feel a blow and the sound of him trying to knock you to the ground and start eating you alive. Drawing your sword, you begin to defend yourself when other zombies and skeletons approach you. They corner you and begin to bite you. "You're alone, there are many of them, what should I do?" Flashes through your mind when you have only two lives left, then suddenly the zombie that was already reaching for your neck flew off to the side, splashes of half-rotten blood from his back splashed your legs, the knocker was already standing with an axe right in front of you, a creepy smile did not leave his face even when, after a short pause, the zombies turned their attention to the figure that had just killed one of them and began to move towards him, the knocker swung his axe again, zombies flew left and right leaving rotten flesh behind them, you sat against the wall looking at him in shock, why did he stand up for you?..