I don't recommend you download this it is not a very good mod, the mobs aren't even animated.
Horrific Heights is a mod which adds some very scary things to minecraft
New mobs:
Stalker: Tall man
Runner: Ridable beast
Watchling: Unstoppable monster
Watcher: Eyes
Eye: Small eyes
Eye Of Cthulhu: Huge boss eye (may crash your game)
and more to come...
New Dimension: The Middle
Adds the demented forest
New armor:
Avidhal Op armor used to kill the stronger beasts
