"The man with the green belt erased your memories of the Hall of Mystery."
"Time paradox eliminated all evidence of your monarchy except this note."
"Be sure to avoid the trigger event for your hidden memory implants."
I'm pretty sure I was just messing with my then-future (now-present) self with these messages. They're in my handwriting, but I don't remember them; I just know that, you know, that's the sort of thing I do.