ten o'clock
she rejoined , with an acid smile . `` It is only in order to punish Elsa that you want to sup with me ? '' `` Do n't be stupid , Klara , '' he retorted . `` I 'll come at ten o'clock . Will you have some supper ready for me then ? I have two or three bottles of French champagne over at my house -- I 'll bring them along . Will you be ready for me ? ''