Talk:Barrier/@comment-29964250-20160914011206/@comment-33697698-20171211143022

The place where Frisk fell at the Ruins had a Barrier above, and at New Home, there's another Barrier. So yeah, they're two separate places.

It was mentioned at the start that the humans created a magic spell to seal the Underground, which was to create the Barrier. So by creating this spell, they probably sealed ALL entrances and exits with Barriers. That's why both the Ruins and New Home had Barriers.

But its a pretty good question, because it IS possible for Frisk to go out the way they came from.

However, they DID fall a really long way down. It's not that easy to simply climb all the way up. It's possible but tough to do. For example, if you get trapped in a cave from a cave-in, you don't spend time removing all the rocks and boulders one by one to get out. You have to go forward and find another exit.

Long story short, the monsters probably  built the castle at one of the other exits when they moved out of the ruins to explore. Thus, it's just two different places with one spell sealing both exits.