Twilight and Spike were in Canterlot on official business. While there, they of course had a list of family and friends they planned to visit; One of them being Donut Joe. While visiting their old friend, they noticed a machine that wasn't there before on one of the tables. Joe explained that it was one of those fortune-telling machines, but you can only ask "yes" or "no" questions. But of course, Twilight didn't believe such an item could exist and felt the need to prove it.
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This story was inspired by one of my favorite Twilight Zone episodes; "Nick of Time."
I like this. Gives me some goosebumps vibe. I look forward to see how this will turn out.