one o'clock
But -- oh , dear ! What am I to say to Dad if he asks me ? I can stand Miss Roscoe 's wrath , but I ca n't face making Dad look sorry . '' The Principal left Gwen until one o'clock to reflect upon her sins , then summoned her again to the study , and urged her in strong terms to confess . `` I will forgive you if you only acknowledge it , but if you persist in denying it , I shall have to go more deeply into the matter , '' she said sternly . `` I can not allow such things to happen at Rodenhurst . It is a very grave fault , Gwen .