Some things are best left alone, especially dark tomes of dubious origin. But try to tell that to Twilight, the Princess of Books, who never met a book she wouldn't read.

And now she's read it, and she's having the strangest dreams. Something is communicating with her in the night. And to top it all off, her body is undergoing a gradual physical transformation.

What's a mare to do? Why, ask one of her enemies to help, of course!

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M-rated for brief sex scenes.