four o'clock
`` I am glad I used the _ bottom _ oven , '' said Ribby , `` the top one would certainly have been very much too hot . I wonder why that cupboard door was open ? Can there really have been someone in the house ? '' Very punctually at four o'clock , Duchess started to go to the party . She ran so fast through the village that she was too early , and she had to wait a little while in the lane that leads down to Ribby 's house . `` I wonder if Ribby has taken _ my _ pie out of the oven yet ? '' said Duchess , `` and whatever can have become of the other pie made of mouse ? ''