"And Then There Were (N-One)" is a 2017 science fiction/murder mystery novella by Sarah Pinsker.
It was republished in the collection Sooner or Later Everything Falls Into the Sea.
[2] It was later republished in the 2019 collection Sooner or Later Everything Falls into the Sea by Small Beer Press.
[3] Tor.com found it "gloriously high-concept", with "a sense of the minute as potentially revelatory",[4] while Kirkus Reviews described it as "phenomenal".
[3] Tangent Online, however, considered it "a fairly straightforward murder mystery", and "rather self-absorbed, for obvious reasons".