noon
His wearing a yellow tie and paying his rent promptly distinguished him from the other lodgers . His raiment was splendid , his complexion olive , his mustache fierce , his manners a prince 's , his rings and pins as magnificent as those of a traveling dentist . He had breakfast served in his room , and he ate it in a red dressing gown with green tassels . He left the house at noon and returned at midnight . Those were mysterious hours , but there was nothing mysterious about Mrs. Dempsey 's lodgers except the things that were not mysterious . One of Mr. Kipling 's poems is addressed to `` Ye who hold the unwritten clue to all save all unwritten things . '' The same `` readers '' are invited to tackle the foregoing assertion .