the night you left

Some nights when we drift off to sleep, we begin to dream. But not often do our dreams end happily. These dreams are called nightmares.
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These dreams are real dreams that I actually had and, for some reason, I still remember them (for the most part) and have written them down (whatever I don't remember, I just kind of fill it in with whatever makes sense).
Note: each short story is not connected to the others.