seven o'clock
He -- '' But Carlotta 's hand was over his mouth at that . How much Phil cared she wanted to hear from nobody but from Phil himself . Philip Lambert found a queer message waiting for him when he came in from his hike . Some mysterious person who would give no name had telephoned requesting him to be at the top of Sunset Hill at precisely seven o'clock to hear some important information which vitally concerned the firm of Stuart Lambert and Son . `` Sounds like a hoax of some sort , '' remarked Phil . `` But Lizzie has been chafing at the bit all day in the garage and I do n't mind a ride . Come on , Dad , let 's see what this bunk means . ''