A Little Account With Swithin Hall I. With a last long scrutiny at the unbroken circle of the sea, David Grief swung out of the cross-trees and slowly and dejectedly descended the ratlines to the deck. "Leu-Leu Atoll is sunk, Mr. Snow," he said to the anxious-faced young mate. "If there is anything in navigation, the atoll is surely under the sea, for we've sailed clear over it twice--or the spot where it ought to be. It's either that or the chronometer's gone wrong, or I've forgotten my navigation." "It must be the chronometer, sir," the mate reassured his owner. "You know I made separate sights and worked them up, and that they agreed with yours." "Yes," Grief muttered, nodding glumly, "and where your Summer lines crossed, and mine, too, was the dead centre of Leu-Leu Atoll. It must