The story is based on an incidental character from Chapters 11 and 12 from the medieval novel Amadis of Gaul. A damsel accompanies a knight on a perilous mission...
http://weightlessbooks.com/genre/fiction/beneath-ceaseless-skies-issue-111/ in a variety of formats.
http://www.amazon.com/Beneath-Ceaseless-Skies-Issue-ebook/dp/B00AQN4GLU/ in Kindle format.
-- Sue Burke