one in the morning
Even in the daylight he needs must look out over that placid sunlit sea and imagine here and there upon its surface the low tower and grey turtle-back of a submarine . Success here might be so great a thing , so great a saving of lives , so dire a blow to the enemy . Somehow that day slowly dragged its burning hours to sunset , the coolness of the evening came , and the swift darkness upon its heels , and once more , high up on the hillside , the vigil was renewed . And at half-past one in the morning , far away at sea , a green light , bright as an emerald , flashed thrice and was gone . `` Did I not say to you , ` Have courage ' ? '' said José Medina . `` Quick !