The oppressive heat of the surface of a frozen story simmers under the surface of Connie Willis' "The Sidon in the Mirror."

Sources:

https://www.sfwa.org/2012/03/12/nebula-awards-interview-connie-willis/

https://en.wikipedia.org/wiki/Connie_Willis

http://www.sftv.org/cw/index.html

https://azsf.net/cwblog/