The amphibious force moved in with big guns ready, with rockets and flame throwers and LCI's and LCT's and planes and thousands of combat-hardened men, expecting to shoot the works against the fog-shrouded little island that might have held the northern key to invasion. The men were all tensely expectant. All, that is, except the nurse and the Air Force radioman whom one of the LCT's had picked up en route, drifting in a rubber life raft. But their apparent indifference to the impending battle a