midnight
`` In that you are right , my lord , for only fools are so foolish as to hearken to the voice of wisdom . Besides , each man forges his own fortune . And now , wise sir , I will give you a key , which you yourself have forged , and behind which lies your fortune . There , take this key ; and if you at midnight slip through the garden to the tower over yonder , this key will open to you the door of the same , and you can then without hesitation mount the spiral staircase and open the door which is opposite the staircase . Behind that you will find the fortune which you have forged for yourself , sir blacksmith , and which will bid you welcome with warm lips and soft arms . And so commending you to God , I must hasten home to think over the comedy which the king has commanded me to write . '' `` But you do not so much as tell me from whom this message comes ? ''