midnight
`` You 're going there -- alone ? '' `` Not exactly ; I shall have company . A gentleman of the Mohammedan persuasion is going to change places with me for the night . No ; he does n't know it yet , but I have reason to believe that he got an R.S.V.P. for the festive occasion and intends to put in a midnight appearance . So I purpose saving him the trouble . It 's only a two-hour ride . '' `` But the risk ! ''