Dennis G. Jerz has spent the last several years researching an obscure but fascinating subject: Will Crowther's "Colossal Cave Adventure." Considered to be the real forerunner of modern interactive fiction, the game has been glossed so many times that it has become obscured by its own mythology.
Finally, Jerz answers some of the questions and dispels some of the myths have surround the game. With new interviews, an partial exploration of the Bedquilt caves, and -- most shockingly -- the original 1976 source code, he has written (and illustrated) a sprawling and intricate piece of scholarship: "Somewhere Nearby is Colossal Cave: Examining Will Crowther's Original 'Adventure' in Code and in Kentucky."
I.F. fans are going nuts about this, and rightly so. It's a beautiful thing.