For twelve years, Ken Lamberton wrote about the natural history of his desert home in Arizona. His essays described the caves, canyons and dry ponds of the landscape, but it wasn’t outdoors where he honed his prose, it was in prison. At 27, Lamberton was convicted of child molestation and sent to jail. He’s since completed his sentence, along with a book about the nature of his crime, called “Beyond Desert Walls: Essays from Prison.”