Mod: Ghost 1.8+

Mod Ghost will add to Minecraft PE ghosts that will appear at night. They can fly fast and teleport, chase players, but they can't attack.

Installing the Ghost mod (.mcaddon):

• Download the mod file marked .mcaddon from the link below.
  
• Just open the file (via ES Explorer on Android) and the game will install everything you need by itself.
  
• Launch Minecraft and go to edit the world.
  
• Select Resource packs.
  
• Find the texture pack and activate it.
  
• Select Behavior packs.
  
• Find the add-on and activate it.
  
• The mod is installed, have a nice game!