With Ghostly Skeleton mod surprise you should not flying skeleton (In Minecraft PE can be forced to fly almost everything), and its ability to pass through obstacles as if they do not exist. There is one important note – you can only set the direction with a long stick, because the addon does not allow you to change the height of the flight. Well, hopefully this will be fixed in future updates.
How To Install Mod?
Download a mod with the extension .mcaddon
Then find it and run, thus importing into the game
Open the game and go to the settings of the world
In the "Resource Packs" and "Behavior Packs", select the imported resource packages (addon)