THIS BE DREAM

There's this place in Mexico that I came upon during a hike. It's a valley with walls that are steep but not high, and it's full of the ghosts of children who ran away. They can look like whatever they want to. If you come into the valley at dawn, noon, or dusk, it's full of what looks like teenagers in club gear and frock coats. They look like they are making fun of you. At any other time, it's full of tall grass, higher than your head.
Along the side of the valley, under limestone shelves, are little twig bunk beds. There are TVs in some of them. They are unplugged and sometimes broken, but they flicker anyway. Sometimes the ghosts are in them and sometimes they invite other ghosts to do TV shows and sometimes you can pick up pirate TV stations if you twist the knobs, but the ghosts get mad if you twist the knobs.

The ghosts have their own folklore and their own stories and jokes and they're mostly terrible. Maybe something gets lost in translation. One researcher collected some several years ago. The ghosts liked her because she brought some Blue's Clues dolls for them.
Here's one of the jokes:
Gregory and Christopher were watching the grass grow. Gregory said, "Why are we watching this grow?" Christopher told him, "Because soon it will be tall." And Gregory said, "I was tall once, but I went back to short."
I told you it was terrible.

The kids are on the whole happy, but they seem to like scaring people. The dried leaves when the wind blows through them sound exactly like bones.