eight o'clock
`` What are they up to , Bob ? '' `` I ca n't tell you until I compare what I copied down with the code key , '' said Bob , as he fished in his pocket for the bit of paper on which he had noted down the robber 's message . Having found this , he and Joe searched through the key and soon had the following message pieced together : `` Truck -- silk -- Barberton Road -- to-night . Meet me and others -- Hicks Bridge -- eight o'clock . Truck due -- ten o'clock . '' Having deciphered the message , the boys gazed questioningly at one another . `` That does n't give us much time to act , '' said Joe .