Data from Amazon.com as of 2023-08-18.
http://www.somtow.org/p/somtow-bibliography.html has a 2021 date for "Caul of Nature"; the copyright page seen on Amazon says it "originally appeared as a short-form story in the Amazon Vella platform". The other 2 stories are supposedly from the webzine Aberrant Dreams but while "Little Red Caplets" was archived (https://web.archive.org/web/20070912214200/http://www.hd-image.com/fiction/little_red_caplets.htm) and is mentioned here, https://peteyoung.livejournal.com/786401.html, there does not seem to be a link for "Pawning the Queen" or any current online mention of a story by Somtow with that title so either it was not archived or possibly the site went down before it was published.
