midnight
The friar shook his head and looked mysterious . `` That passenger , '' said the friar , `` will never come over . Every full moon , at midnight , that voice calls , ` Over ! ' I and my varlet have more than once obeyed the summons , and we have sometimes had a glimpse of a white figure under the opposite trees : but when the boat has touched the bank , nothing has been to be seen ; and the voice has been heard no more till the midnight of the next full moon . '' `` It is very strange , '' said Robin . `` Wondrous strange , '' said the friar , looking solemn . The voice again called `` Over ! ''