eleven o'clock
`` Will you consent to doing a little watching with me ? '' asked Mr. Melville . `` What 's in the wind ? '' `` To-night , at eleven o'clock , on a lonely bit of road well out of town , '' replied George Melville , `` young Captain John Benson has agreed to meet my son , Don . '' `` For what purpose ? '' `` Pollard has recently perfected a submarine boat device of the greatest practical value . Young Benson has promised Don to steal the drawings and descriptions pertaining to that device , and to turn them over to Don , for a price , of course ! ''