Then the motors were shut off and the ocean and the mountain chains seemed to rise up to meet the aeroplane, sailing at the speed of the fastest express.  Over the water and down until even Jimmie clutched Ned's arm and gave forth an exclamation of alarm.  Then a turn of a lever sent the Nelson skimming over Calleo and back toward Lima.  Avoiding the vacant space where the Nelson had rested before, Leroy, under Ned's directions, landed on the dry sand some distance away.