I picked this up in a used bookstore over Memorial day weekend, we were waiting out some inclimate weather on a camping trip. I wasn't familiar with Blaylock, something about the book just caught my attention. It may be the best $2 expenditure of my life.
This is a fantastic book. The plot, if you can call it that, is that the evil Mr. Pennyman has been busy collecting the 30 coins that were paid to Judas to betray Christ. Gaining possesion of all 30 will bring ultimate power and immortality to Pennyman. The 30th coin is owned by bumbling, clueless boarding house keeper in Southern California. Pennyman becomes his tenant.
This book really isn't about plot, it's about the characters, and the interplay between them. Although its a fantasy book, the setting is modern day CA. What ultimately "happens" isn't nearly as important as the journey to get there. This is just a fun book to read, and I'm looking forwarding to reading some of Blaylock's other work.
The Lost Coin is out of print, but Half.com has plenty available.