Ok should I or shouldn't I have au crossovers in this book because I have a little something planned out for this book.

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Shinobi Falls
FanfictionUpon coming back to gravity falls 2 years later, Mabel and Dipper see that soos (now the boss of the mystery shack) a blonde with "whisker marks". The only thing that's on the twin's mind is what's his mystery. Read and follow the mystery twins as t...
a/n
Ok should I or shouldn't I have au crossovers in this book because I have a little something planned out for this book.