10:30
I make it a rule never to open letters from the parents or guardians of my girls ; other letters , you understand , must be scrutinized unless the correspondence has already been arranged for . '' She passed the wondering Nancy two businesslike looking envelopes with the card printed in the corner of `` Ambrose , Necker & Boles . '' `` Thank you , Madame , '' said the girl , and hurried away to her first class with the letters fairly burning a hole in her pocket . There would be no opportunity before the first intermission -- at 10:30 o'clock -- to look at their contents . Madame Schakael had prophesied that Nancy would be perfect in her recitations that day , and so there would be no doubt of her being able to go skating on the river . But with the unexpected letters from Mr. Gordon 's office unopened , it seemed hardly probable that Nancy would pull through the day without a reprimand . `` What _ is _ the matter with you , Miss Nelson ? ''