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Nightmare Fuel: The Dragon Doctors
In Chapter 9, "The Spirit of Dark Water" drowns a woman in an ocean of despair; an endless ocean of despair. It's based off of The Spirit of Dark and Lonely Water, so imagine everything the drowning spirit says in the voice of Donald Pleasance.
When Mori's last name was destroyed, we get a glimpse of what that truly means. The real question is, is this Mind Rape on a small child, or something far more widespread?