midnight
For the rest of the morning lessons went on as usual . Immediately after dinner , however , Diana received a message to report herself in the study . She went slowly . She was still thinking ; she had been doing nothing else but think since that midnight excursion down the stairs . It was rather a white-faced , anxious-eyed little Diana who entered the study . Miss Todd was sitting at her desk , and Hilary and Geraldine stood near her . They looked half resentful and half nervous .