We don't actually know which stories were the message bottle stories. As far as I know, Ange never explicitly entitles them or describes their contents with specificity (that is, things like "one of the message bottles features a First Twilight where all the parents but Rosa are killed in the chapel and their bellies stuffed with candy," something presumably unique to Turn).
So it's possible both Legend and Turn aren't the message bottle stories... but they're sort of portrayed as being that, so...
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