So, keep your eyes up at your local bookseller. If you don't see it out, ask the sales staff to check the backroom. If they check the backroom and come back with nothing, ask someone else to check the backroom. If you still can't get the book, start shouting about suppression of thought, then leave a Trek!Fail post on as many internet sites as you can think of.
Or, just check back the next time you're in.