PROLOGUE: THE ISLANDThe first sign was the orange Corvette.In the early days of July, the residents of Lanai started seeing a C8 Stingray the color of a traffic cone tearing along the island’s switchback roads. Then other signals came. The clerk working the cigarette counter at the Pine Isle Market said her nephew, a private chef, had flown in and had been shopping for a big group.CAPTAIN AMERICA Larry Ellison (in a picture for VF in 1996) is obsessed with yacht racing. After growing frustrated ...