Over here in the UK Crucible: McCoy is on sale for 99p. Is it a standalone read or do you need to have read the other books in the trilogy?
If memory serves, it's a great book, too... well worth 99p, if you're undecided. I'm hopeful that someday the Crucible novels will make the 99¢ sale on this side of the pond, so I can get them in ebook form too.