one o'clock
Presently he rose and got the thing , not until he touched it quite persuaded he was not the victim of an optical hallucination . A square envelope of creamy paper , it was superscribed simply in a hand strange to him , _ Anthony Ember , Esq _ . , with the address of his apartment house . Tearing the envelope he found within a double sheet of plain notepaper bearing a message of five words penned hastily : '' _ Au Printemps _ -- '' _ one o'clock _ -- '' _ Please _ ! '' Nothing else , not another word or pen-scratch ... . Opening the door Lanyard hailed the hall-attendant , a sleepy and not over-intelligent negro . `` When did this come for me ? '' ''