Duality is a story about parallel universes and people who travel between them—it’s the latter that Chloe Spencer successfully focuses on here. Chloe writes in a quick, concise prose that I love so much; the pacing is great and not a word is wasted across this relatively short but punchy novel. With witty, believable dialogue, Chloe injects humanity into her cast of characters; none of them are perfect or even particularly “heroic,” but all of them have a very real feeling about them—these are characters you could imagine meeting in real life. Believable people in sci-fi are rare indeed.

Speaking of, the sci-fi angle of Duality is smartly woven in too; I would’ve enjoyed a little more exposition regarding Clockwork, but I also feel like it would be distracting to the main plot. After all, it’s not about *how* it works, it’s about situations that arise *because* it works. And Duality works; it’s a fast-paced story with enough turns to keep you guessing. This book is very much worth your time, absolutely recommended.