Be sure to check out The Village of Oester, too, when you get a chance. It's actually quite different from The Hamlet of Thumble-- more mature theme and horror-type stuff. Lots more adventure, but plenty of setting, too (just like its predecessor). Also, some cool new monsters and encounters.
And Dawning Star is a book that I have been trying to get people to check out. It's got top-quality production values and a great story. I really appreciate your picking it up!