A Stitch in Time
I was wondering in A Stitch in Time is made of gold!
For some reason it is priced at 92 POUNDS (!) for a new copy.
Even old ones are not that cheap considering how old they are.
was written by Andrew "Garak" Robinson and is utterly fantastic. Unfortuantely, it was burdened with the worst cover art in human or Cardassian history and thus sold very poorly.
I got mine in a charity shop a few years ago for pennies