It's a special chapter (17), of a book in progress, which features a visit to this flying castle!
There are also links to short stories I've written and posted.
From one moment to the next, we might find ourselves very happy and content with life, then, in an instant, life may become fragile and swiftly be turned around to such an extent, that we are literally paralyzed from fear and confusion. Lester's Transit Strike Hobby is about that journey.
Now I'm channelling Mack Reynolds. Amazon Planet, Dec 66/Jan & Feb 67...
Check this site out if you are nostalgic...has pics of covers from Analogs. Mine burnt up in 91.
http://www.noosfere.com/showcase/astounding_1966.htm
Wasn't calling you derivative, mind you...just that your ideas pinged memories...