The fifth book in the Who Rules? saga.

Following up on a promise and a few legends, Twilight Sparkle and Princess Luna find themselves in an adventure that echoes back across all of Equestria.

There are many aspects of this story that build off of the previous books in the Who Rules? series. If you haven't read them, you might not be able to follow everything that happens here. And I'm sure that the cover illustration of Cadance has nothing to do with what might happen later in the story...

Warning: This story contains graphic descriptions of sex and powerplay. If you are offended by these things, then please do not read.