HERE'S A PHOTO OF YOU WORKING YOUR TAN Prologue. There are major goings on right inside the school's front office. This is where the neat desks are arranged into right angles. Prim and trim in front of the neat white secretaries with their tidy assistant pins pinned to their sharp lapels. "O' can I get a picture please?" Type type type, "Of course, yes." Chapter. The slow arc of light being thrust at the dusty screen aches like a spreading bruise. It's a hot knot shaped like a hound, a small fat hunting dog on a wide rug beside a glowing fire and an oversize bouncy chair. The long table has a dozen sleepy students sitting at it. They fidget with their pens and gaze at the dim clock overhead. The radiator bangs and a couple of the girls chins bounce when they nod. "We've taken advantage of the this rule before. Last week we saw it with Hawthorn. We're likely to see it again in Updike. Can anyone identify the rule I'm talki...