about twelve o'clock
In the meantime , lock the back gate after you -- here is the key , which you can keep in your pocket . Having left him in the tool-house -- in a sufficiently helpless state , mark -- lock him in , put that key in your pocket , also ; then get my travelling carriage ready , put to the horses , and when all this is done , come to me here ; I shall then instruct you how and where to proceed . I shall also accompany you myself to the town of ------ , after which you shall take a post-chaise , and proceed with this person to the place of his destination . Let none of the servants see you ; and remember we are not to start from the garden gate until about twelve o'clock , or later . '' Gillespie promised compliance , and , in fact , undertook the business with the greater alacrity , on hearing that there was to be a bottle of whiskey in the case . As he was leaving the room , however , Sir Thomas called him back , and said , with a frown which nobody could misunderstand , `` Harkee , Gillespie , keep yourself strictly sober , and -- oh yes , I had nearly forgotten it -- try if there is a hard scar , as if left by a wound , under his chin , to the left side ; and if you find none , have nothing to do with him . You understand , now , all I require of you ? ''