ten o’clock
`` I am sorry to disturb you , Herr Stuer , '' said I , `` but will you kindly tell me when Miss Carlotta left you , this morning ? '' `` Miss Carlotta came not at all this morning , '' he replied . `` But it was her regular day ? '' `` At ten o'clock . She did not come . At eleven I have another pupil . She has not before missed one lesson . ''