Zombie Land [Biome]

Zombie land, This May Look Good, Occupied by many Zombies, and there are buildings that can be used to bring up zombies,And there is a chest containing 1 Zombie egg,At the Middle of the Building, There are 4 Diamond Blocks. Why Should a 4 Diamond Block? Because When We Want To Enter The Zombie Area That Is Very Difficult

Hopefully you all understand my words ;)
I'm Not Too Able to Speak English