Originally Posted by turtle
Why is there a zombie in my garden? He wouldn't move from the dirt until after he was hit. Then he went to attack the villagers.
Probably an attempted zombie siege. If you have a lot of villagers in a certain area the game will occasionally (rarely) try to spawn an attack force of zombies at night – no matter how lit up or 'safe' the village is. Had it happen a couple of times in my SE desert village and I thought it was a glitch until I looked it up.
Also, nice village upgrade! I've been out for a couple of weeks and just today was able to get over there.