ten o'clock
`` How far distant do you imagine it is ? '' inquired the professor , as they rode forward with their drooping spirits considerably revived . `` Not more than fifteen miles -- if it is that , ` cording ter my calcerlations , '' decided Pete . `` Then we should arrive there by ten o'clock to-night . '' `` About that time -- yep . That is , if none of ther stock give out beforehand . '' `` Why do they call it the Haunted Mesa ? ''