Space Between Worlds

I read this book five years ago, and thought I'd refresh myself before the #SFFBookClub read of the sequel this month. I'd forgotten just how much I enjoyed this story and world. The writing has a brusque, hardboiled tone from the cynical point of view of a survivor, and it really works for this particular kind of book.

This is a multiverse travelling story, where there is technology that can send people between similar worlds, but only safely to ones where their "other selves" are not alive. Cara is somebody who has fought to survive her whole life and thus has few other selves alive, so she gets a job as a "traverser" to be sent to other worlds to collect information. Because it deals with worldwalking between closely related worlds rather than wildly different ones (like Charles Stross' Merchant Princes series), it gets the opportunity to explore the same characters in different timelines where their lives had taken different paths.

The post-apocalyptic wasteland locale of this novel is split into the wealthy folks of Wiley City living behind a wall (literally and metaphorically the airquotes nice white people of this story), the religious Ruralites, and the survivors of Ashtown between them. Cara is constantly code switching and crossing borders, both locally and multiversally--she is pretending to be a Ruralite, is secretly from Ashtown, while she precariously lives in Wiley City (hoping to get citizenship). Thematically, I love how the book ends with doubling down on Cara's role as an intermediary between worlds.