eight o'clock
`` I 'm just telling Miss Fairfield about the plan of the house , '' said Ferris , innocently . `` It 's well planned , is n't it ? '' `` Very , '' said Patty . As Patty stepped out of her room into the hall the next morning , at eight o'clock , she found Hal Ferris already tiptoeing down the stairs . He put his finger to his lip with a great show of secrecy , which made Patty laugh . `` Why must we be so careful ? '' she whispered .