The engineers dressed very informally—no suits or ties—because being stashed away, no one in authority except Kelly ever saw them anyway. “We don’t dress up for each other,” Kelly’s assistant, Dick Boehme, told me with a laugh. I asked Dick how long I could expect to stay. He shrugged. “I don’t know exactly what Kelly has in mind for you to do, but I’d guess anywhere from six weeks to six months.” He was slightly off: I stayed for thirty-six years.