about midnight
`` You see this weapon . '' He took up the heavy bludgeon that Oliver had made for himself on commencing his travels in Newfoundland . `` Well , I 've brought this here every time I 've come just to get the two sentries accustomed to see me with it . This is your last night on earth , Grummidge , so I 'm goin ' to pay you an extra visit about midnight , by way of sayin ' farewell . As I pass the sentries -- who are quite used to me now -- I 'll fetch the first one I come to such a crack with this here that he will give no alarm . Before the other has time to wink I 'll treat him to the same . It 's a mean sort o ' thing to do , but necessity has no law , so I 've made up my mind to go through with it . ''