After having fallen in love with Emily The Strange from a graphic novel I serendipitously happened upon at the worshipful local library, I discovered that there was a series of four novels on this same charming deviant, and I requested all four, which was the maximum I could, given that I had one request pending already for something else. I wasn't sure what order the novels followed at first, so I ended-up reading this, the second book, first, before the first one was seconded.
In this book, Emily is bemoaning the need to move to yet another new town. The reason(s) for this move is or are obscure, but the cause is evidently tied to Emily's strange and often anti-social behavior eventually pissing-off the citizenry to the point where mobs and pitchforks might be called for. The first big clue to this is Emily's dire need to prank the whole town before she leaves. In her new home, Emily wastes no time in exploring everywhere, particular dumpsters and sewers, both of which figure large in her legend, and already considering a prank plan.
At one point early in the novel, Emily accidentally duplicates herself, and then discovers that her other self is actually the evil side of her, so it's really a riff on Jekyll and Hide, but is also hilarious as the two Emilys try to get along, and then slowly set about trying to sabotage each other. In the end, they have become mortal enemies, the only solution to which problem, seems to be Emily having to sew their bodies together, and then try to re-integrate their minds. In the end she succeeds, leaving only an empty husk of her alter ego, like a dried-up snakeskin, but the journey there is the real story.
The slow-burn of this perfectly titled adventure, filled with fear, suspicion, doubt, and paranoia, was magnificent to experience, and I highly recommend it.