midnight
`` Oh , you David can sing it to us together to-morrow night ! '' cried Elsie , and there was a responsive chorus from all over the ward . Polly went to sleep singing the hymn in her heart . Miss Lucy 's cot was nearest the door , and shortly after midnight she waked with the sound of a rap in her ears . Hastily throwing on a robe which was always at hand , she answered with a soft , `` What is it ? '' `` Burton Leonard is worse , '' came in Dr. Dudley 's low voice , `` and he wants Polly to sing to him . Get her ready as quick as you can , please . ''