eight o'clock
; `` She '' replied : `` Oh , Donald , do n't ! '' and a sound followed so suspiciously like a kiss that Ingred , only a few feet away from them , almost giggled aloud . She wondered how long they were going to keep her a prisoner . It might be very pleasant for themselves to sit `` spooning '' in the garden on a mild May evening , but if they prolonged their enjoyment beyond eight o'clock , the hostel supper-bell would ring , and any girl not in her place at the table would lose a mark for punctuality . `` He '' on the other side of the window , was waxing sentimental about old times and bygone days . `` I 'm glad you 're not a nun , darling ! '' he remarked fatuously .