twelve o'clock
` Good-night , then , gentlemen -- remember that I am everywhere and for ever at your service , most noble Lords of the Rhine . ' ` Surely , ' said the old fellow , ` those few drops have n't made you so drunk that you would raise the whole crew of sprites already ? If you talk like that again I shall be off , though I should get the sack for it : I tell you that on this night the spirits imprisoned in these casks rise and hold infernal carnival here in this very spot , aye , and other spirits besides ! I would n't be here after twelve o'clock for worlds . ' ` Well , I 'll be quiet , you old driveller , if you 'll only take me on to my Lady Rose 's apartment itself . ' At last we reached it , the little garden of the queen of flowers . There she lay in all her majestic girth , the biggest cask I ever saw in my life , and every glass worth a golden guinea .