seven o'clock
`` Very well , doctor . '' Then there came a little laugh , for these two were excellent friends now , and the query , `` Another record-breaking fee ? '' `` I 'll tell you to-morrow , '' he replied . `` Do n't forget , seven o'clock train for New York . Good-night . '' `` Good-night , doctor . '' Donald turned away from the desk , and for a moment stood motionless .