10 o'clock
`` Be careful what you say or do . Those are the Graham girls . '' `` They 're early risers ; we must say that much for them , '' observed Katherine in a low voice . `` We must give them credit for not lying in bed until 10 o'clock and , and -- '' `` And for dressing for an afternoon party before breakfast , '' Helen Nash concluded . `` Is n't it funny ! '' Hazel Edwards said with a suppressed titter . `` I wonder if they are going in bathing . ''