Apparently, the home in which L. Ron Hubbard invented Scientology is right here in Phoenix. In fact, it is right by my kids' school and I drive past it almost every day. In the next few days I will take a camera and snap a picture or two.
I was a fan of Hubbard's "Battlefield Earth" (the book, not the movie) as a young adult -- it is a classic example of 1950's pulp science fiction -- though I picked it up a few years ago out of nostalgia and found that it did not wear very well. I do not know much about Scientology, though I wonder why folks who go all-in for it aren't at least a bit suspicious of a religion involving ancient aliens that was cooked up by a science fiction writer.
The whole thing makes for a fascinating story, and I think it would be fabulous book material for someone who is not either a proselytizing Scientologist or an angry ex-Scientologist with an ax to grind.