This is a little theory I came up with regarding Patrick McHale's highly acclaimed animated mini-series Over the Garden Wall. What if Wirt and Greg's journey through the Unknown in an attempt to get back home was all just in their heads? Think about it. In the episode "Into the Unknown/My Reverie", it's revealed that Wirt and Greg "came" to the Unknown simply by falling into a lake in their home town and becoming unconscious in the process. Right in the next and final episode, "The Unknown", Wirt and Greg "return" home after Wirt is the first to awaken from his unconsciousness and gets himself and Greg out of said lake, as the two of them eventually get transported to the hospital. This very much implies that the Unknown doesn't actually exist, and that Wirt and Greg's big adventure was just something they dreamed up while they were pretty close to drowning in the lake. This also means that there was really no Woodsman, no Beatrice, no Beast, and especially none of the other fantastical creatures and beings the two brothers meet along the way. The entirety of the Unknown and its residents was all in their unconscious imaginations. Bummer, huh? Yeah...sorry to ruin it for those who genuinely love the show, but this is just something about it I've been speculating for a while.

Feel free to debunk my theory in the comments below. I'm open to constructive criticism.