ten o'clock
_ Mille tonnerres _ ! '' said he in a low tone . `` Who can it be ? ... so early in the day ... not yet ten o'clock ... it is very mysterious . '' `` It is only mysterious , '' said I , `` as long as you do n't open the door . Shall I answer the bell ? '' `` No -- yes -- wait a moment ... suppose it is that demon , my landlord , or that archfiend , my tailor -- then you must say ... holy St. Nicholas !