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I found a site called Bulbapedia with lots of information about pokemon:
"Bulbapedia is an encyclopedia about Pokémon to which anyone can contribute. Since its launch in February 2005, it has grown to become one of the largest Pokémon resources on the internet."
This entry talks about Misty almost being eaten by a pokemon when she was a child.
Haunter is said to eat people's dreams after scaring them to death