
Prison of Sleep was a bit different from the first book in terms of construction, because instead of following one character, the chapters alternate between Zax and Ana. If only he could figure out how to do that… Now Zax must find Minna first and warn her, and try to keep the multiverse from imploding. A horrifying creature who calls himself the Prisoner lives in the spaces between the worlds, and he desperately wants to find Minna, who is the key to his diabolical plan. A group of cultists called the Cult of the Worm, the individuals responsible for Zax’s condition, are trying to destroy all the worlds, including everyone who isn’t a cultist. However, trouble is brewing in the multiverse. Ana is welcomed to Sleeperhold, where other sleepers and their companions have set up base and are able to safely travel to other worlds-both forwards and backwards-in a conveyance called a sleepercar. In alternating chapters, Ana recounts her own adventures of meeting a Sleeper named Toros who agrees to help her find Zax. In Prison of Sleep, we get to hear Ana’s story and what happened to her after she and Zax were separated.


When the story ends, Zax is finally reunited with a woman named Ana who he lost for quite a long time, and Ana has important information about the multiverse. He doesn’t know why this is happening, only that he wants to figure out a way to stop it and find his way back to his home world, the Realm of Spheres and Harmonies.

Zax discovers one day that whenever he falls asleep, he wakes up in another world. In Doors of Sleep, we followed Zaxony Dyad Euphony Delatree-or Zax for short-on his adventures through the multiverse. Tim Pratt concludes his high energy sci-fi multiverse duology with Prison of Sleep, and just like Doors of Sleep, it was a ton of fun! This is a series that needs to be read in order, though, so do be aware that this review contains minor spoilers for the first book in the series. The nitty-gritty: A unique multiverse tale with high stakes and engaging characters, Prison of Sleep is a satisfying series wrap-up. Published by Angry Robot on April 26 2022 This does not affect my opinion of the book or the content of my review. I received this book for free from the Publisher in exchange for an honest review.
