First published
After hearing Applejack's story of how she came to value honesty, Apple Bloom notices something is up. Specifically, neither her or her parents are in it.
Thinking it's just a fluke, she decides to ignore it… Until she gets a letter leading her to an old tome of strange magic… And an adverse reaction to its energy nopony else seems to have.
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Based on inconsistencies in Where the Apple Lies.