It’s even tighter on Copperwood Crescent, an elegant semicircle where massive piles of stone and brick sprawl on spacious wooded lots. The residents of Copperwood Crescent include a shipping-line heir, two upper-echelon mafiosi, the owner of a chain of budget funeral parlors, and two to three dozen similarly well-heeled citizens. One private cop car has as its sole responsibility the safeguarding of Copperwood Crescent, along with four adjoining and similarly exclusive streets-Ironwood Place, Silverwood Place, Pewterwood Place, and Chancery Drive.

If Forest Hills Gardens is the soft underbelly of Queens, Copperwood Crescent is the ruby in its navel.

I didn’t have any trouble finding the ruby. On my earlier trip I’d walked all around the neighborhood armed with pocket atlas and clipboard-a man with a clipboard never looks out of place. I’d found Copperwood Crescent then and I found it now, barely slowing the Pontiac as I rolled past Jesse Arkwright’s house, an enormous beamed Tudor number. On each of the three floors a light burned in a mullioned window.

At the end of Copperwood Crescent I took a sharp left into Bellnap Court, a quiet block-long cul-de-sac that was out of bounds for the Copperwood-Ironwood-Silverwood-Pewterwood-Chancery patrol car. I parked at the curb between a couple of sizable oaks and cut the engine, removing my jumper wire from the ignition.

You need a sticker to park on the street, but that’s to keep commuters from cluttering the area during daylight hours. Nobody gets towed at night. I left the car there and walked back to Copperwood Crescent. If the patrol car was on the job, I didn’t see it, nor did I notice anyone else walking about.

The same three lights were lit in the Arkwright house. Without hesitation I walked the length of the driveway at the right of the house. I shined my pencil-beam flashlight through a garage window. A gleaming Jaguar sedan crouched on one side of the garage. The other stall was quite empty.