midnight
`` We had better do so , then . A cabman 's suspicions would be aroused if he dropped us both at some lonely spot in the dead of the night . '' `` Quite so . I think it would be best for us to meet at the Gate of the Appian Way at midnight . I must go back to my lodgings for the matches and candles and things . '' `` All right , Burger ! I think it is very kind of you to let me into this secret , and I promise you that I will write nothing about it until you have published your report .