A review by _ash0_
Uncanny Magazine, Issue 15, March/April 2017 by Lynne M. Thomas

4.0

This novella had such a cool and unique concept, which I have never seen in any sci-fi novel so far. A convention where you get to meet yourself from other alternate universes. How cool is that?! On top of that, it’s a murder mystery where one of your alternate selves gets murdered, similar to Agatha Christie’s novels. It was done really well. I wish it were a full length novel.
The title of the story made sense only later. There were N Sarah to begin with and 1 of them gets killed so you are left with N-1 (N-One). I loved the title, the story and the execution. Definitely going to try her other works.