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Cara can travel between parallel worlds – but only because her life has been cut short on those other worlds, by disease or turf wars or a million other things. On 372 parallel worlds in total, to be exact. But on this world, Cara’s survived, and she’s been pulled from her family’s home in the wastelands outside the glistening Wiley City to travel and retrieve the data others desperately want but cannot access themselves. She’s got it all, and if she can just keep her head down, she’ll be allowed to become a citizen soon and be free from being sent back to the slums.

At first, that’s all Cara wants to do. She does her job, flirts with her handler, visits her family and tries not to think about what it means that they’re still outside the city’s walls. But then one of her few remaining parallel counterparts turns up dead under mysterious circumstances, and when she picks up that world to travel to, her life starts to turn itself on its head.

This book starts off with a hefty dose of exposition, but I enjoyed that section a lot because it involves such things as describing how desperate people often blend traditions of various kinds, spiritual and otherwise, to grab whatever hope they can. And soon after that intro, the plot twists start coming and they don’t stop coming—I was texting friends while I read about “oh man, ANOTHER huge twist!” But for the most part, those twists didn’t feel contrived. They felt like natural progressions of the story that I just hadn’t expected, and they kept me reading and hoping for another one that would blow the world of the story open for me like the previous ones had.

However, the last quarter or so of the book starts to feel like a different sort of story—there’s still action, but it starts to feel more formulaic, if not predictable. Some portions also started to feel more like descriptions of just how Cara’s day was going, which I often enjoy, but felt very different from the twisty story that had originally grabbed me.

Even so, I really liked this book. Because it’s a parallel world story, we see the same characters crop up in different worlds, all a little different than the last. It’s very “butterfly effect,” where one event or choice changes who a person is in such a way that they’re still recognizable as themself, but different aspects of their personality have emerged, and it was very intriguing to figure out who was going to pop up next. Especially since Cara wasn’t supposed to involve herself with the people she met on parallel worlds, but kept doing so anyway.

The romance content was one of the weaker points of this book for me, though. Cara has had a crush on her handler, Dell, for years now as they’ve worked together, and she thinks Dell also likes her—but neither of them will make a move. They flirt, but at first they keep shutting each other out in ways that feel logical. When you find out why, it definitely makes more sense, but I still wasn’t sure how I felt about the romance developing between the women.

The book contains much more frank depictions of substance use/abuse, as well as sex work, than you see in many other books. A number of characters are also subject to physical, sexual, and emotional abuse, and the sections describing all of these were more difficult to get through because their effect on Cara was very evident in the text and the difficult details were not glossed over.

Overall, The Space Between Worlds was a book that has definitely ended up on my re-reads shelf, and I’m excited to figure out whether I’ll notice the buildup to the plot twists a second time around.

Rating: 4 stars

Content Warnings: substance abuse, assault, physical abuse, sexual abuse, emotional abuse, violence, death