six o'clock
`` I want to see those wireless messages , first of all , '' said Darrow , reaching out his hand . McCarthy hesitated ; then swiftly thrust forward the flimsies . Darrow , a slight smile curving his full red lips , held them to the light . They read as follows : `` McCarthy : A sign was promised you at six o'clock . It has been sent . Repent and beware ! Go while there is yet time .