midnight
Archie dropped his overcoat and set out for room 811 . He found Ottenburg in the act of touching a match to a chafing-dish , at a table laid for two in his sitting-room . `` I 'm catering here , '' he announced cheerfully . `` I let the waiter off at midnight , after he 'd set me up . You 'll have to account for yourself , Archie . '' The doctor laughed , pointing to three wine-coolers under the table . `` Are you expecting guests ? ''