Twelve o'clock
Tom and Ned had just arrived at the Damon home in the airship , to find the wife of the eccentric man almost distracted over her husband 's strange disappearance . `` It happened last night , '' Mrs. Damon said , when she was somewhat composed . `` Last night about twelve o'clock . '' `` Twelve o'clock ! '' cried Tom , in surprise `` Why that 's about the time -- '' He stopped suddenly . `` What were you going to say ? '' asked Mrs. Damon .