Shifting Sands by Wendy C Allen (EelKat)
Per the author, this is one in a series of short tales designed to be read in fifteen minutes to half an hour, a short break in a busy today. The series is called “Twisted Tales” and other tales I have read were twisted throughout their presentation. This one has a slow build-up to a rather surprising ending. There are subtle hints as to what might happen, but the final scene explodes away from the build-up.