Unknown Number

"Unknown Number" is a science fiction epistolary short story by Blue Neustifter. It was initially published as a thread on Twitter under the username "Azure" in 2021 and later compiled into an ebook in 2023.

Synopsis

The story unfolds through a series of text messages between Gaby — a trans woman — and an alternate version of herself from a parallel universe where she did not transition.

Reception

"Unknown Number" was a finalist for the 2022 Hugo Award for Best Short Story.
CBC.ca called it "intimate and moving".