My nephew ran into a problem and his Uncle is the one that "should know the solution!"
He's playing Minecraft PE on Android in Creative mode.
Anyhow, he built all kinds of buildings, etc, etc, on a local stored world. He then started building and walking through portals. He made a portal to go into the Volcano, but when he came back out he stands in a blank field. Can't find his buildings or anything for miles around. One of the portals was built with a stack of yellow stones beside it (so he could find it back), but he can't find it either.
We crafted a map but it only shows the two portals in the grass field and nothing else.
So then we crafted a compass and followed the red end. It just goes on and on and on, without ever actually getting anywhere.
Lastly, we started digging a hole until we saw the other side, jumped in and we were floating UNDER the world, looking up at black "dirt/ground".
Anyone have a suggestion how he can get back to his buildings or find a way home?