Man, I went on a wild goose chase for that 'Sour Apple Book' last year! It’s one of those indie releases that pops up in weird places. I found my copy at a tiny bookstore in Portland that specializes in underground zines and niche fiction. The owner told me they only got five copies, and they sold out in a day. Online, I’ve seen it pop up on eBay or Etsy occasionally, but prices get ridiculous—like, $50 for a used paperback.
If you’re not into hunting, check indie publishers’ websites directly. Sometimes they do small reprints, or you might luck out with a digital version. The author’s Tumblr used to have links to PDF sales, but that was ages ago. Honestly, half the fun was the search—it feels like uncovering secret treasure when you finally snag a copy.