Really 3.5 stars
Short summary: Siggy, our spunky, perceptive heroine, after having a friend fall into a time-warp (time pocket), goes to work as a janitor at an asylum for the criminally insane. There she grows to know three bizarre inmates -- sociopathic Jerry Wolfe, biotech-damaged Joseph Bell, and the enigmatic "Professor". With her knowledge of them and the time pockets, she becomes the go-to person for solving the mystery when one of the inmates escapes.
I have to say, I really liked this one up until the end. The author launches a number of intriguing plot threads into the air and appears to juggle them successfully until taking a huge back-step on the dismount (excuse the multiple mixed metaphors). It ended and I was left, "huh"??? I almost felt like I was missing something deep and profound that was just beyond my reach. Really though, I think it was a miss for the author, who almost had something profound to say.
One of my favorite themes in sci-fi is the exploration of the alien vs. human (ala Ender's Game) and the interactions/misunderstandings that emerge. This was something else that I thought started off strong, but by the end, fell into the same anthropomorphist trap that afflicts so many in the genre. Except for one alien who remains too mysterious -- you still didn't really know what it was trying to do. The idea is that by the end, you want learn more about what makes the aliens tick, but without them ticking like humans. I don't think this was achieved.
Ultimately there were just too many loose ends (spoilers to follow):
--what did happen Joseph Bell?
--why was Siggy the one who find/open the time pockets?
--why did the professor need Jerry Wolfe? And what the heck did he really want??????
A final minor beef: Siggy's final love interest came out of nowhere, appearing suddenly as her boyfriend in chapter 14 (out of 18). I kind feel like that's a cop-out in a book -- like in a mystery novel when the author invents the perpetrator at the very end. You want the guy to be there all along, so that if you were smart enough you might have figured the mystery, or in this case, the love interest out. Deus-ex-amore insta-love is annoying.
Anyway, I still enjoyed this book for being imaginative and original. This book was my first Emily Devenport novel and I *think* it was an early work. Will definitely read more by her to see if her writing matures.