If you the one who liked scary thing and challenging to play in your survival world, then this add-on is for you it added the scariest mobs and extremely creepy mobs into your game.
This boss mob is really tall, the height of it’s about 17 blocks
Feature:

Health: 8000
Damage: 40
Will attack players and villagers
Can knock player away
Siren head will pick the player and other mob if it think it can
Can spawn naturally in taiga biome at night, but the chance for it to spawn is very rare
It’s very hard to see when it’s in the dark
The only way to defeat siren head is ranged weapon

DISCLAIMER: This is an unofficial application for Minecraft Pocket Edition. This application is not affiliated in any way with Mojang AB. The Minecraft Name, the Minecraft Brand and the Minecraft Assets are all property of Mojang AB or their respectful owner. All rights reserved. In accordance with http://account.mojang.com/documents/brand_guidelines