The inside story of the rise and fall of Houston's Enron Corp., which collapsed spectacularly last month, will be told in a book signed rapidly by Lisa Kaufman at Public Affairs. It's tentatively titled Pipe Dreams, and will be written by Austin-based investigative reporter Robert Bryce, who has been tracking the group's decline for the past year. He will describe how it grew, with well-oiled political access in Texas (to the Bush family, among others), from a small pipeline company to a multibillion-dollar energy giant, and then how mismanagement and a misunderstanding of the market led to its downfall. Kaufman bought world rights plus first serial, audio and electronic book, from agent Dan Green at his POM agency, and plans to publish, with equal speed, by next October.